Day Length Calculator
| Month | Day length on the 1st | On the 15th | Change over the month |
|---|---|---|---|
| January | 10h 21m | 10h 31m | +28 min |
| February | 10h 50m | 11h 11m | +42 min |
| March | 11h 34m | 11h 58m | +51 min |
| April | 12h 27m | 12h 50m | +47 min |
| May | 13h 15m | 13h 34m | +35 min |
| June | 13h 50m | 13h 57m | +6 min |
| July | 13h 56m | 13h 48m | -25 min |
| August | 13h 30m | 13h 11m | -44 min |
| September | 12h 45m | 12h 21m | -49 min |
| October | 11h 54m | 11h 31m | -49 min |
| November | 11h 04m | 10h 45m | -35 min |
| December | 10h 28m | 10h 20m | -7 min |
| Longest day | Monday 22 June 2026, 13h 58m | ||
| Shortest day | Tuesday 22 December 2026, 10h 19m | ||
Calculated for New Delhi (28.61, 77.21) with standard refraction. Accurate to about a minute; local terrain can change what you see.