"Fri, 21 Feb 2025 21:10:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250221
Only TIME
21:10:52
General datetime
2025-02-21 21:10:52Z
For Database
2025-02-21 21:10:52
For HTTP1.1
Fri, 21 Feb 2025 21:10:52 GMT