"Sat, 15 Feb 2025 05:35:31"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250215
Only TIME
05:35:31
General datetime
2025-02-15 05:35:31Z
For Database
2025-02-15 05:35:31
For HTTP1.1
Sat, 15 Feb 2025 05:35:31 GMT