Sunrise · सूर्योदय
06:39
Local civil time, rounded to the minute.World Day Atlas · Sunday
Riyadh
1990-01-21
Local astronomical calendar · Asia/Riyadh · 24.7140°, 46.6750°
Sunset · सूर्यास्त
17:30
Local civil time, rounded to the minute.Daylight
10 h 51 min
24-hour local civil day.Moon illumination
27.4%
Waning crescent
Evaluated at the midpoint of this local civil day; phase angle 297.07°.Day reference
| Gregorian date | 1990-01-21, Sunday |
|---|---|
| Local day begins, UTC | 1990-01-20T21:00:00.000Z |
| Local day ends, UTC | 1990-01-21T21:00:00.000Z |
| Location | Riyadh (24.714, 46.675) |
| Calculation | Astronomy Engine 2.1.19; sea-level observer and standard refraction. |
Nepali calendar date
2046-10-08 BS
Gregorian 1990-01-21 corresponds to 2046-10-08 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 | 01:57 |
|---|---|
| Moonset | 12:42 |
| Moon distance at local-day midpoint | 402,628 km |
On this calendar date across history
Selected records for 01-21 across different historical years; these are not all events from 1990 or from Riyadh.
- 1968: A B-52 bomber crashes near Thule Air Base, contaminating the area after its nuclear payload ruptures. One of the four bombs remains unaccounted for after the cleanup operation is complete. 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 1990-01-21
What time is sunrise in Riyadh on 1990-01-21?
Calculated sunrise is 06:39 in Asia/Riyadh.
What time is sunset in Riyadh on 1990-01-21?
Calculated sunset is 17:30 in Asia/Riyadh.
What is the moon phase on 1990-01-21 in Riyadh?
Waning crescent, with 27.4% illumination at the local-day midpoint.
What is 1990-01-21 in the Nepali calendar?
2046-10-08 BS, using Patro's project calendar table.
How much daylight is there in Riyadh on 1990-01-21?
The sunrise-to-sunset interval is 10 h 51 min.