Find Your Solar-Aligned Eating Window

What are the best times to eat based on your location? Calculate your personalized circadian eating window using sunrise, solar noon, and sunset data based on your geographic location.
Eating Time — circadian eating window

Eating Time

Find the best time to eat with a circadian eating window aligned to the sun. Enter a location and a date.

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Detecting your location…
Sunrise
Solar noon
Sunset
Moon

Eating Window

Breakfast
~35 g protein
3 eggs in EVOO; 150 g full-fat Greek yoghurt with chia, flax, lemon zest, EVOO; rocket + tomato + olives + ½ avocado; optional sourdough with tomato + olive oil. Coffee or green tea.
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Lunch
largest meal · anchored on solar noon
180–220 g grilled white fish (dorada / rape) or lamb chops; 1 cup black rice or new potatoes — eat after the vegetables; large salad + grilled asparagus / artichoke / piquillo, EVOO + sherry vinegar; almonds or 30 g Mahón; sparkling water + lemon; optional 100 mL red wine with food. 10–15 min daylight walk immediately after.
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Optional snack
only if trained or genuinely hungry
Boiled egg + 20 g walnuts; Greek yoghurt + cinnamon; or 10 g 85 % chocolate with herbal tea. Skipping is preferred — it deepens autophagy.
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Dinner
light · low-GI · closes 2 h pre-sunset
Gazpacho or clear bone broth; 120–150 g oily fish (sardines / boquerones / salmon); steamed/roasted non-starchy veg with EVOO + garlic; ≈ ½ cup lentils or chickpeas; chamomile or lemon-balm tea. No simple sugars, no alcohol.
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Fasting window
water or unsweetened herbal tea
Overnight fast from end of dinner until tomorrow's break-fast.

Light Hygiene

  • Evening golden-hour walk
  • Indoor < 50 lux from
  • Blue-light cutoff
  • < 10 lux from
  • Lights-out
Sun position via NOAA Solar Position Algorithm (SunCalc method, BSD-2-Clause, < 1 min accuracy). Moon phase via synodic-month calculation referenced to 2000-01-06 new moon. City search via Open-Meteo geocoding (no key, free). All times shown in the location's local timezone.

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