Sunrise · सूर्योदय
06:29
Local civil time, rounded to the minute.World Day Atlas · Friday
Riyadh
1981-02-13
Local astronomical calendar · Asia/Riyadh · 24.7140°, 46.6750°
Sunset · सूर्यास्त
17:46
Local civil time, rounded to the minute.Daylight
11 h 18 min
24-hour local civil day.Moon illumination
68.2%
First-quarter phase
Evaluated at the midpoint of this local civil day; phase angle 111.22°.Day reference
| Gregorian date | 1981-02-13, Friday |
|---|---|
| Local day begins, UTC | 1981-02-12T21:00:00.000Z |
| Local day ends, UTC | 1981-02-13T21:00:00.000Z |
| Location | Riyadh (24.714, 46.675) |
| Calculation | Astronomy Engine 2.1.19; sea-level observer and standard refraction. |
Nepali calendar date
2037-11-02 BS
Gregorian 1981-02-13 corresponds to 2037-11-02 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 | 12:47 |
|---|---|
| Moonset | 01:29 |
| Moon distance at local-day midpoint | 374,155 km |
On this calendar date across history
Selected records for 02-13 across different historical years; these are not all events from 1981 or from Riyadh.
- 1960: Black college students stage the first of the Nashville sit-ins at three lunch counters in Nashville, Tennessee . 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 Riyadh on 1981-02-13
What time is sunrise in Riyadh on 1981-02-13?
Calculated sunrise is 06:29 in Asia/Riyadh.
What time is sunset in Riyadh on 1981-02-13?
Calculated sunset is 17:46 in Asia/Riyadh.
What is the moon phase on 1981-02-13 in Riyadh?
First-quarter phase, with 68.2% illumination at the local-day midpoint.
What is 1981-02-13 in the Nepali calendar?
2037-11-02 BS, using Patro's project calendar table.
How much daylight is there in Riyadh on 1981-02-13?
The sunrise-to-sunset interval is 11 h 18 min.