Sunrise · सूर्योदय
07:04
Local civil time, rounded to the minute.World Day Atlas · Saturday
Chicago
1981-01-31
Local astronomical calendar · America/Chicago · 41.8780°, -87.6300°
Sunset · सूर्यास्त
17:05
Local civil time, rounded to the minute.Daylight
10 h 0 min
24-hour local civil day.Moon illumination
18.3%
Waning crescent
Evaluated at the midpoint of this local civil day; phase angle 309.52°.Day reference
| Gregorian date | 1981-01-31, Saturday |
|---|---|
| Local day begins, UTC | 1981-01-31T06:00:00.000Z |
| Local day ends, UTC | 1981-02-01T06:00:00.000Z |
| Location | Chicago (41.878, -87.63) |
| Calculation | Astronomy Engine 2.1.19; sea-level observer and standard refraction. |
Nepali calendar date
2037-10-18 BS
Gregorian 1981-01-31 corresponds to 2037-10-18 in the project calendar archive. This is a civil-date conversion, not a conversion of a local instant to Nepal time.
Month lengths are validated against the existing synchronized Patro archive.Moonrise and moonset
| Moonrise | 03:24 |
|---|---|
| Moonset | 13:20 |
| Moon distance at local-day midpoint | 395,117 km |
On this calendar date across history
Selected records for 01-31 across different historical years; these are not all events from 1981 or from Chicago.
- 1918: Finnish Civil War : The Suinula massacre, which changes the nature of the war in a more hostile direction, takes place in Kangasala . Source
Reused from Patro’s source-backed history archive. Wikipedia-derived records retain linked attribution; text is available under its applicable CC BY-SA terms. Explore history · Time Machine
Nepali calendar vocabulary
सूर्योदय = sunrise · सूर्यास्त = sunset · चन्द्रमा = Moon · मिति = date · पात्रो = calendar
Calendar dictionary · Nepali typing · Preeti / Unicode converter
Questions about Chicago on 1981-01-31
What time is sunrise in Chicago on 1981-01-31?
Calculated sunrise is 07:04 in America/Chicago.
What time is sunset in Chicago on 1981-01-31?
Calculated sunset is 17:05 in America/Chicago.
What is the moon phase on 1981-01-31 in Chicago?
Waning crescent, with 18.3% illumination at the local-day midpoint.
What is 1981-01-31 in the Nepali calendar?
2037-10-18 BS, using Patro's project calendar table.
How much daylight is there in Chicago on 1981-01-31?
The sunrise-to-sunset interval is 10 h 0 min.