Sunrise · सूर्योदय
05:30
Local civil time, rounded to the minute.World Day Atlas · Sunday
Riyadh
1983-08-21
Local astronomical calendar · Asia/Riyadh · 24.7140°, 46.6750°
Sunset · सूर्यास्त
18:23
Local civil time, rounded to the minute.Daylight
12 h 53 min
24-hour local civil day.Moon illumination
95.4%
Waxing gibbous
Evaluated at the midpoint of this local civil day; phase angle 155.49°.Day reference
| Gregorian date | 1983-08-21, Sunday |
|---|---|
| Local day begins, UTC | 1983-08-20T21:00:00.000Z |
| Local day ends, UTC | 1983-08-21T21:00:00.000Z |
| Location | Riyadh (24.714, 46.675) |
| Calculation | Astronomy Engine 2.1.19; sea-level observer and standard refraction. |
Nepali calendar date
2040-05-05 BS
Gregorian 1983-08-21 corresponds to 2040-05-05 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 | 17:16 |
|---|---|
| Moonset | 03:19 |
| Moon distance at local-day midpoint | 405,889 km |
On this calendar date across history
Selected records for 08-21 across different historical years; these are not all events from 1983 or from Riyadh.
- 1993: NASA loses contact with the Mars Observer spacecraft. 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 1983-08-21
What time is sunrise in Riyadh on 1983-08-21?
Calculated sunrise is 05:30 in Asia/Riyadh.
What time is sunset in Riyadh on 1983-08-21?
Calculated sunset is 18:23 in Asia/Riyadh.
What is the moon phase on 1983-08-21 in Riyadh?
Waxing gibbous, with 95.4% illumination at the local-day midpoint.
What is 1983-08-21 in the Nepali calendar?
2040-05-05 BS, using Patro's project calendar table.
How much daylight is there in Riyadh on 1983-08-21?
The sunrise-to-sunset interval is 12 h 53 min.