"Mon, 20 Jan 2025 21:55:58"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250120
Only TIME
21:55:58
General datetime
2025-01-20 21:55:58Z
For Database
2025-01-20 21:55:58
For HTTP1.1
Mon, 20 Jan 2025 21:55:58 GMT