"Tue, 18 Feb 2025 18:28:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250218
Only TIME
18:28:36
General datetime
2025-02-18 18:28:36Z
For Database
2025-02-18 18:28:36
For HTTP1.1
Tue, 18 Feb 2025 18:28:36 GMT