Daily Celestial Overview
Key timings for Wednesday, October 7
Planetary Hours in Rochester This Week
| Date | Day ruler | First hour starts | Daytime hour | Nighttime hour |
|---|---|---|---|---|
| Wednesday, Oct 7 | ☿ Mercury | 7:14 AM | 57 min | 63 min |
| Thursday, Oct 8 | ♃ Jupiter | 7:15 AM | 57 min | 63 min |
| Friday, Oct 9 | ♀ Venus | 7:16 AM | 57 min | 63 min |
| Saturday, Oct 10 | ♄ Saturn | 7:18 AM | 56 min | 64 min |
| Sunday, Oct 11 | ☉ Sun | 7:19 AM | 56 min | 64 min |
| Monday, Oct 12 | ☽ Moon | 7:20 AM | 56 min | 64 min |
| Tuesday, Oct 13 | ♂ Mars | 7:21 AM | 56 min | 64 min |
Today's Hours by Planet in Rochester
Planetary Hours in Rochester Through 2026
At 43.2° N, the seasons reshape the hours: a daytime hour in Rochester lasts 45 minutes around Dec 21 and 77 around Jun 21, while the night hours move the opposite way.
Clocks in Rochester go forward an hour on Mar 8 and back on Nov 1. The planetary hours follow the Sun, so the hours themselves don't move; only their clock times jump by an hour overnight.
By the clock, Rochester's latest sunrise of the year comes on Oct 31 (7:43 AM), the last morning before clocks go back, not on the shortest day.
| In 2026 | Shortest / earliest | Longest / latest |
|---|---|---|
| Daytime hour | 45 min, Dec 21 | 77 min, Jun 21 |
| Sunrise (first hour) | 5:29 AM, Jun 13 | 7:43 AM, Oct 31 |
| Sunset (first night hour) | 4:35 PM, Dec 4 | 8:54 PM, Jun 21 |
Clock Changes in Rochester, 2026
| Date | Clocks go | First hour, day before | First hour, that day |
|---|---|---|---|
| Mar 8 | Forward an hour | 6:36 AM | 7:34 AM |
| Nov 1 | Back an hour | 7:43 AM | 6:45 AM |
How These Times Are Calculated
Twelve equal hours run from sunrise to sunset and twelve from sunset to the next sunrise, starting with the weekday's ruler and following the Chaldean order. Every time on this page, today's and the year's, is computed with the Swiss Ephemeris for these coordinates.
Frequently Asked Questions
How long is a planetary hour in Rochester?
Today a daytime hour in Rochester lasts about 57 minutes and a nighttime hour about 63. Over 2026 the daytime hour ranges from 45 minutes (Dec 21) to 77 (Jun 21).
Do planetary hours in Rochester change with daylight saving time?
Their clock times do. On Mar 8 (clocks forward) and Nov 1 (clocks back), sunrise and every hour after it jump by an hour on the clock: the first hour started at 6:36 AM the day before Mar 8 and at 7:34 AM that day.