Vitamin D

The sun, month by month

Sunrise and sunset in Mexico City in January

On January 1 in Mexico City the sun rises at 07:11 and sets at 18:10; on day 31 it rises at 07:12 and sets at 18:28. Over the month the day grows 17 minutes longer.

Sunrise07:14
Sunset18:18
Golden hour17:46–18:18
Day length11 h 05 min

Day by day

All times are local to Mexico City. Dawn and dusk mark civil twilight.

DayDawnSunriseSunsetDuskDay length
106:4707:1118:1018:3410 h 59 min
206:4707:1118:1018:3410 h 59 min
306:4807:1118:1118:3510 h 59 min
406:4807:1218:1118:3510 h 60 min
506:4807:1218:1218:3611 h 00 min
606:4807:1218:1318:3611 h 00 min
706:4907:1218:1318:3711 h 01 min
806:4907:1318:1418:3811 h 01 min
906:4907:1318:1418:3811 h 02 min
1006:4907:1318:1518:3911 h 02 min
1106:5007:1318:1618:3911 h 03 min
1206:5007:1318:1618:4011 h 03 min
1306:5007:1318:1718:4011 h 03 min
1406:5007:1418:1818:4111 h 04 min
1506:5007:1418:1818:4211 h 05 min
1606:5007:1418:1918:4211 h 05 min
1706:5007:1418:1918:4311 h 06 min
1806:5007:1418:2018:4311 h 06 min
1906:5007:1418:2118:4411 h 07 min
2006:5007:1418:2118:4511 h 08 min
2106:5007:1418:2218:4511 h 08 min
2206:5007:1418:2218:4611 h 09 min
2306:5007:1418:2318:4611 h 09 min
2406:5007:1318:2418:4711 h 10 min
2506:5007:1318:2418:4711 h 11 min
2606:5007:1318:2518:4811 h 12 min
2706:5007:1318:2518:4911 h 12 min
2806:5007:1318:2618:4911 h 13 min
2906:5007:1318:2718:5011 h 14 min
3006:4907:1318:2718:5011 h 15 min
3106:4907:1218:2818:5111 h 16 min

Approximate astronomical values: they can shift a minute or two from year to year.

What about vitamin D in January?

In January, the typical synthesis window in Mexico City runs from 10:00 to 16:00: with medium skin and a t-shirt, ~6 min at the best moment is enough.

See the Mexico City vitamin D guide