"Sat, 01 Feb 2025 20:38:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250201
Only TIME
20:38:35
General datetime
2025-02-01 20:38:35Z
For Database
2025-02-01 20:38:35
For HTTP1.1
Sat, 01 Feb 2025 20:38:35 GMT