"Fri, 21 Feb 2025 04:51:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250221
Only TIME
04:51:23
General datetime
2025-02-21 04:51:23Z
For Database
2025-02-21 04:51:23
For HTTP1.1
Fri, 21 Feb 2025 04:51:23 GMT