https://dayarc.co.uk/blogs/journal/what-does-10000-lux-mean 2026-09-09T20:35:05+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-rise-google.png?v=1788950105 What does 10,000 lux actually mean? https://dayarc.co.uk/blogs/journal/light-and-your-daily-rhythm 2026-09-09T20:37:26+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-mini-google.png?v=1788950246 Light and your daily rhythm: a simple introduction https://dayarc.co.uk/blogs/journal/how-to-choose-a-sad-lamp-uk 2026-09-24T12:38:07+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-how-to-choose-a-sad-lamp-uk.jpg?v=1790217487 How to choose a SAD lamp in the UK: a practical buying guide A person writing a checklist in a notebook https://dayarc.co.uk/blogs/journal/morning-light-before-sunrise-uk-winter 2026-09-24T11:57:14+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-morning-light-before-sunrise-uk-winter.jpg?v=1790215034 Morning light in winter: what to do before sunrise A foggy winter morning over the English countryside before sunrise https://dayarc.co.uk/blogs/journal/how-long-use-light-therapy-lamp 2026-09-24T12:38:04+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-how-long-use-light-therapy-lamp.jpg?v=1790217484 How long should you use a light therapy lamp each day? An hourglass on a plain grey surface https://dayarc.co.uk/blogs/journal/how-far-from-light-therapy-lamp 2026-09-24T12:38:02+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-how-far-from-light-therapy-lamp.jpg?v=1790217482 How far should you sit from a light therapy lamp? A tape measure lying on a wooden table https://dayarc.co.uk/blogs/journal/sad-lamp-vs-sunrise-alarm-clock 2026-09-24T12:37:59+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-sad-lamp-vs-sunrise-alarm-clock.jpg?v=1790217479 SAD lamp vs sunrise alarm clock: which do you need? A bedside table with a warm lamp glowing at night https://dayarc.co.uk/blogs/journal/red-light-therapy-vs-sad-lamps 2026-09-24T12:37:57+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-red-light-therapy-vs-sad-lamps.jpg?v=1790217477 Red light therapy vs SAD lamps: what is the difference? Swirls of red light against a dark background https://dayarc.co.uk/blogs/journal/light-therapy-lamp-desk-working-from-home 2026-09-24T12:37:54+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-therapy-lamp-desk-working-from-home.jpg?v=1790217474 Using a light therapy lamp at your desk: a work-from-home guide A laptop on a wooden desk by a window with potted plants https://dayarc.co.uk/blogs/journal/portable-light-therapy-lamp-buying-guide 2026-09-24T12:37:51+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-portable-light-therapy-lamp-buying-guide.jpg?v=1790217471 Portable light therapy lamps: what to check before you buy A packed travel bag with a camera and a lantern https://dayarc.co.uk/blogs/journal/morning-light-through-window-cloudy-days 2026-09-24T12:37:49+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-morning-light-through-window-cloudy-days.jpg?v=1790217469 Does daylight through a window count as morning light? Raindrops on a window with a grey city blurred behind https://dayarc.co.uk/blogs/journal/light-therapy-lamp-running-cost-uk 2026-09-24T12:37:46+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-therapy-lamp-running-cost-uk.jpg?v=1790217466 How much does a light therapy lamp cost to run in the UK? A warm glowing light bulb against a dark background https://dayarc.co.uk/blogs/journal/why-dayarc-lights-are-built-this-way 2026-09-17T10:33:40+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-why-dayarc-lights-are-built-this-way.jpg?v=1789349603 Why DAYARC light therapy lamps are built the way they are https://dayarc.co.uk/blogs/journal/dayarc-rise-vs-mini 2026-09-17T10:33:39+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-dayarc-rise-vs-mini_2dc25f84-58f6-4884-a15a-8ccff1a5c0b4.jpg?v=1789349621 DAYARC Rise vs DAYARC Mini: which light therapy lamp should you choose? https://dayarc.co.uk/blogs/journal/why-panel-size-matters-light-therapy-lamp 2026-09-17T10:33:38+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-why-panel-size-matters-light-therapy-lamp.jpg?v=1789349638 Why panel size matters in a light therapy lamp: is bigger better? https://dayarc.co.uk/blogs/journal/inside-the-dayarc-mini 2026-09-17T10:33:38+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-inside-the-dayarc-mini_515bf7c3-36a1-4221-84b5-bd82b63eb1ad.jpg?v=1789349655 Inside the DAYARC Mini: what a compact bright-light lamp should actually do https://dayarc.co.uk/blogs/journal/do-sad-lamps-work 2026-09-17T10:33:37+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-do-sad-lamps-work_f3536b55-9185-449b-b116-246b0954ae4f.jpg?v=1789349672 Do SAD lamps work? What the research actually says https://dayarc.co.uk/blogs/journal/how-does-a-light-therapy-lamp-work 2026-09-17T10:33:36+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-how-does-a-light-therapy-lamp-work.jpg?v=1789349689 How does a light therapy lamp work? Light, eyes and your body clock https://dayarc.co.uk/blogs/journal/best-time-of-day-light-therapy-lamp 2026-09-17T10:33:35+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-best-time-of-day-light-therapy-lamp.jpg?v=1789349706 The best time to use a light therapy lamp (and why evenings differ) https://dayarc.co.uk/blogs/journal/when-to-start-using-a-light-therapy-lamp-uk 2026-09-17T10:33:35+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-when-to-start-using-a-light-therapy-lamp-uk.jpg?v=1789349723 When to start using a SAD lamp in the UK: a month-by-month guide https://dayarc.co.uk/blogs/journal/are-sad-lamps-safe 2026-09-17T10:33:34+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-are-sad-lamps-safe.jpg?v=1789349740 Are SAD lamps safe? Eyes, UV and who should check with a GP first https://dayarc.co.uk/blogs/journal/light-therapy-lamp-side-effects 2026-09-17T10:33:33+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-therapy-lamp-side-effects.jpg?v=1789349756 Light therapy lamp side effects: what's normal and how to adjust https://dayarc.co.uk/blogs/journal/do-sad-lamps-give-you-vitamin-d 2026-09-17T10:33:32+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-do-sad-lamps-give-you-vitamin-d.jpg?v=1789349774 Do SAD lamps give you vitamin D? https://dayarc.co.uk/blogs/journal/winter-blues-or-sad 2026-09-17T10:33:32+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-winter-blues-or-sad.jpg?v=1789349790 Winter blues vs SAD: how to tell the difference and when to see your GP https://dayarc.co.uk/blogs/journal/light-therapy-for-shift-workers 2026-09-17T10:33:31+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-therapy-for-shift-workers.jpg?v=1789349807 Light therapy for shift workers: a practical guide https://dayarc.co.uk/blogs/journal/light-therapy-for-jet-lag 2026-09-17T10:33:30+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-therapy-for-jet-lag.jpg?v=1789349823 Light therapy for jet lag: using a bright-light lamp when you travel https://dayarc.co.uk/blogs/journal/can-a-light-therapy-lamp-help-you-sleep 2026-09-17T10:33:29+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-can-a-light-therapy-lamp-help-you-sleep.jpg?v=1789349839 Can a light therapy lamp help you sleep better? https://dayarc.co.uk/blogs/journal/3000k-vs-4000k-light-therapy-lamp 2026-09-17T10:33:04+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-3000k-vs-4000k-light-therapy-lamp.jpg?v=1789349857 3,000 K vs 4,000 K: does colour temperature matter in a light therapy lamp? https://dayarc.co.uk/blogs/journal/led-vs-fluorescent-light-therapy-lamps 2026-09-17T10:33:29+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-led-vs-fluorescent-light-therapy-lamps_d60f6f63-ad0d-4f2e-9144-cb6965ab2750.jpg?v=1789349873 LED vs fluorescent light therapy lamps: what's changed https://dayarc.co.uk/blogs/journal/light-therapy-lamp-every-day-summer 2026-09-17T10:33:28+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-therapy-lamp-every-day-summer.jpg?v=1789349890 Should you use a SAD lamp every day? (And what about summer?) https://dayarc.co.uk/blogs/journal/morning-routine-light-therapy-lamp 2026-09-17T10:33:27+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-morning-routine-light-therapy-lamp.jpg?v=1789349906 How to build a morning routine around a light therapy lamp https://dayarc.co.uk/blogs/journal/why-am-i-so-tired-on-winter-mornings 2026-09-17T10:33:26+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-why-am-i-so-tired-on-winter-mornings.jpg?v=1789349924 Why am I so tired on dark winter mornings? https://dayarc.co.uk/blogs/journal/blue-monday-2027-is-it-real 2026-09-17T10:33:25+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-blue-monday-2027-is-it-real.jpg?v=1789206902 Blue Monday 2027: is it real, and what actually makes January hard? https://dayarc.co.uk/blogs/journal/clocks-go-back-2026-adjust-sleep-mornings 2026-09-17T10:33:25+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-clocks-go-back-2026-adjust-sleep-mornings.jpg?v=1789206964 When do the clocks go back in 2026? How to adjust your sleep and mornings https://dayarc.co.uk/blogs/journal/winter-light-scotland-sunrise-times 2026-09-17T10:33:24+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-winter-light-scotland-sunrise-times.jpg?v=1789206999 Winter sunrise times in Scotland: dark mornings from Edinburgh to Inverness https://dayarc.co.uk/blogs/journal/uk-daylight-hours-by-month 2026-09-17T10:33:23+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-uk-daylight-hours-by-month.jpg?v=1789207029 UK daylight hours by month: how much light you really get https://dayarc.co.uk/blogs/journal/is-a-sad-lamp-worth-it-uk 2026-09-17T10:33:22+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-is-a-sad-lamp-worth-it-uk.jpg?v=1789207056 Is a SAD lamp worth it in the UK? An honest look at cost, evidence and use https://dayarc.co.uk/blogs/journal/sad-lamp-at-work-uk-office 2026-09-17T10:33:22+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-sad-lamp-at-work-uk-office.jpg?v=1789207084 Using a SAD lamp at work: a guide for UK offices and hybrid desks https://dayarc.co.uk/blogs/journal/light-therapy-for-students-uk 2026-09-17T10:33:21+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-therapy-for-students-uk.jpg?v=1789207112 Light therapy lamps for students: dark halls, late nights and UK winter terms https://dayarc.co.uk/blogs/journal/light-therapy-lamps-for-older-adults 2026-09-17T10:33:20+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-therapy-lamps-for-older-adults.jpg?v=1789207139 Light therapy lamps for older adults: a practical UK guide https://dayarc.co.uk/blogs/journal/about-dayarc-uk-circadian-rhythm-startup 2026-09-17T10:38:34+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-about-dayarc-uk-circadian-rhythm-startup.jpg?v=1789207167 Who is DAYARC? The new UK circadian rhythm startup behind Rise and Mini https://dayarc.co.uk/blogs/journal/morning-walk-vs-sad-lamp-british-winter 2026-09-17T10:33:19+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-morning-walk-vs-sad-lamp-british-winter.jpg?v=1789207197 Morning walk vs SAD lamp: which is better in a British winter? https://dayarc.co.uk/blogs/journal/inside-the-dayarc-rise 2026-09-17T10:33:18+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-inside-the-dayarc-rise.jpg?v=1789207223 Inside the DAYARC Rise: every specification and what it means at your table https://dayarc.co.uk/blogs/journal/common-sad-lamp-mistakes 2026-09-17T10:33:18+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-common-sad-lamp-mistakes.jpg?v=1789207250 10 common SAD lamp mistakes (and how to fix each one) https://dayarc.co.uk/blogs/journal/sad-lamp-christmas-gift-guide-uk 2026-09-17T10:42:39+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-sad-lamp-christmas-gift-guide-uk.jpg?v=1789207276 SAD lamp gift guide: Christmas ideas for someone who dreads a UK winter https://dayarc.co.uk/blogs/journal/dark-flats-north-facing-rooms-light 2026-09-17T10:33:17+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-dark-flats-north-facing-rooms-light.jpg?v=1789207303 Dark flats and north-facing rooms: how to get more light in a UK home https://dayarc.co.uk/blogs/journal/where-to-put-a-sad-lamp-at-home 2026-09-17T10:33:16+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-where-to-put-a-sad-lamp-at-home.jpg?v=1789207330 Where to put a SAD lamp at home: kitchen table, desk or bedside? https://dayarc.co.uk/blogs/journal/why-does-autumn-make-you-tired 2026-09-17T10:33:15+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-why-does-autumn-make-you-tired.jpg?v=1789207356 Why does autumn make you so tired? Light, clocks and the UK's shrinking days https://dayarc.co.uk/blogs/journal/daylight-lamp-vs-sad-lamp-uk 2026-09-17T10:33:14+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-daylight-lamp-vs-sad-lamp-uk.jpg?v=1789207383 Daylight lamp vs SAD lamp: what UK shoppers need to know https://dayarc.co.uk/blogs/journal/winter-low-mood-nhs-talking-therapies-gp 2026-09-17T10:33:14+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-winter-low-mood-nhs-talking-therapies-gp.jpg?v=1789207409 Winter low mood: when to see your GP and how NHS Talking Therapies work https://dayarc.co.uk/blogs/journal/preordering-a-dayarc-lamp-what-happens-next 2026-09-17T10:38:36+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-preordering-a-dayarc-lamp-what-happens-next.jpg?v=1789207435 Ordering a DAYARC lamp: what happens next, step by step https://dayarc.co.uk/blogs/journal/dayarc-delivery-returns-warranty-uk 2026-09-17T10:38:35+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-dayarc-delivery-returns-warranty-uk.jpg?v=1789207461 DAYARC delivery, returns and warranty in the UK: the plain-English version https://dayarc.co.uk/blogs/journal/history-of-light-therapy-10000-lux 2026-09-24T12:24:08+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-history-of-light-therapy-10000-lux.jpg?v=1790216647 Where does the 10,000 lux standard come from? A short history of light therapy An old typewriter, a desk lamp and an open book on a dark desk https://dayarc.co.uk/blogs/journal/do-sad-lamps-help-with-tiredness 2026-09-24T12:24:57+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-do-sad-lamps-help-with-tiredness.jpg?v=1790216697 Do SAD lamps help with tiredness and low energy? What the alertness research says A tired man rubbing his face at a laptop in a home office by a window https://dayarc.co.uk/blogs/journal/light-therapy-glasses-vs-sad-lamp 2026-09-24T12:25:37+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-therapy-glasses-vs-sad-lamp.jpg?v=1790216737 Light therapy glasses vs a SAD lamp: what's the difference? A pair of black-framed glasses on a page of text in soft light https://dayarc.co.uk/blogs/journal/sad-lamp-or-vitamin-d-uk-winter 2026-09-24T12:26:14+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-sad-lamp-or-vitamin-d-uk-winter.jpg?v=1790216774 SAD lamp or vitamin D? What the NHS says about each in a UK winter Low winter sun over a grassy English field with trees in the distance https://dayarc.co.uk/blogs/journal/night-owls-morning-light-body-clock 2026-09-24T12:26:55+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-night-owls-morning-light-body-clock.jpg?v=1790216815 Night owls: can morning light shift a late body clock? An alarm clock on a wooden bedside table in a dark room https://dayarc.co.uk/blogs/journal/weekend-lie-ins-social-jet-lag-winter 2026-09-24T12:27:37+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-weekend-lie-ins-social-jet-lag-winter.jpg?v=1790216856 Weekend lie-ins and social jet lag: why Monday mornings hurt in winter An unmade white bed beside a window in soft daylight https://dayarc.co.uk/blogs/journal/evening-screens-winter-sleep-light 2026-09-24T12:28:15+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-evening-screens-winter-sleep-light.jpg?v=1790216895 Evening screens and winter sleep: what light does after dark A bedside table at night with a glowing lamp, a clock and a phone charger https://dayarc.co.uk/blogs/journal/sad-lamp-with-glasses-contact-lenses-laser-eye-surgery 2026-09-24T12:28:56+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-sad-lamp-with-glasses-contact-lenses-laser-eye-surgery.jpg?v=1790216936 Can you use a SAD lamp with glasses, contact lenses or after laser eye surgery? Black-framed reading glasses resting on the open page of a book https://dayarc.co.uk/blogs/journal/winter-sunrise-times-uk-cities-compared 2026-09-24T12:29:44+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-winter-sunrise-times-uk-cities-compared.jpg?v=1790216983 Winter sunrise times across the UK: London, Cardiff, Belfast, Newcastle and Inverness compared The London skyline in hazy low winter sun https://dayarc.co.uk/blogs/journal/darkest-month-in-the-uk 2026-09-24T12:30:28+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-darkest-month-in-the-uk.jpg?v=1790217027 Which is the darkest month in the UK? Daylight and sunshine, month by month A grey, rainy British high street with people under umbrellas https://dayarc.co.uk/blogs/journal/how-quickly-days-get-shorter-uk-autumn-equinox 2026-09-24T12:31:14+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-how-quickly-days-get-shorter-uk-autumn-equinox.jpg?v=1790217073 How quickly do the days get shorter in the UK after the autumn equinox? A road lined with trees in golden autumn leaves https://dayarc.co.uk/blogs/journal/too-late-to-start-sad-lamp-january 2026-09-24T12:31:53+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-too-late-to-start-sad-lamp-january.jpg?v=1790217112 Is it too late to start using a SAD lamp in January? Frost patterns on a window pane with a sunrise behind https://dayarc.co.uk/blogs/journal/when-to-stop-using-sad-lamp-spring 2026-09-24T12:32:31+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-when-to-stop-using-sad-lamp-spring.jpg?v=1790217151 When should you stop using a SAD lamp in spring? Pink spring blossom on a branch in soft morning light https://dayarc.co.uk/blogs/journal/how-bright-is-a-cloudy-day-uk-lux-levels 2026-09-24T12:33:14+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-how-bright-is-a-cloudy-day-uk-lux-levels.jpg?v=1790217193 How bright is a cloudy day in the UK? Lux levels of daylight, offices and homes compared Heavy grey cloud over rolling countryside seen from a hill https://dayarc.co.uk/blogs/journal/why-do-the-clocks-change-history-british-summer-time 2026-09-24T12:33:56+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-why-do-the-clocks-change-history-british-summer-time.jpg?v=1790217235 Why do the clocks change? A short history of British Summer Time Big Ben and the Houses of Parliament lit by a winter sunset https://dayarc.co.uk/blogs/journal/winter-daylight-shetland-orkney 2026-09-24T12:34:38+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-winter-daylight-shetland-orkney.jpg?v=1790217278 Winter daylight in Shetland and Orkney: the shortest days in the UK A coastal village on a grassy hillside above the sea in Shetland https://dayarc.co.uk/blogs/journal/first-two-weeks-with-a-sad-lamp 2026-09-24T12:35:19+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-first-two-weeks-with-a-sad-lamp.jpg?v=1790217318 Your first two weeks with a SAD lamp: what to expect day by day A steaming mug on a table beside a bright window in the morning https://dayarc.co.uk/blogs/journal/is-my-sad-lamp-bright-enough-lux-meter-apps 2026-09-24T12:36:02+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-is-my-sad-lamp-bright-enough-lux-meter-apps.jpg?v=1790217361 Is my SAD lamp bright enough? How lux is measured and why phone apps mislead A tape measure laid across a wooden table https://dayarc.co.uk/blogs/journal/how-long-does-a-light-therapy-lamp-last 2026-09-24T12:36:43+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-how-long-does-a-light-therapy-lamp-last.jpg?v=1790217402 How long does a light therapy lamp last? LED lifespan, cleaning and care A small white lamp glowing on a side table in a tidy room https://dayarc.co.uk/blogs/journal/light-on-a-dark-winter-commute 2026-09-24T12:37:26+10:00 weekly https://cdn.shopify.com/s/files/1/0815/4769/0225/articles/dayarc-journal-light-on-a-dark-winter-commute.jpg?v=1790217445 Light on a dark winter commute: trains, buses and 7 am starts An empty railway platform on a grey, foggy winter morning