"Sat, 22 Feb 2025 04:51:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250222
Only TIME
04:51:23
General datetime
2025-02-22 04:51:23Z
For Database
2025-02-22 04:51:23
For HTTP1.1
Sat, 22 Feb 2025 04:51:23 GMT