"Mon, 27 Jan 2025 20:38:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250127
Only TIME
20:38:21
General datetime
2025-01-27 20:38:21Z
For Database
2025-01-27 20:38:21
For HTTP1.1
Mon, 27 Jan 2025 20:38:21 GMT