"Tue, 18 Feb 2025 19:25:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250218
Only TIME
19:25:45
General datetime
2025-02-18 19:25:45Z
For Database
2025-02-18 19:25:45
For HTTP1.1
Tue, 18 Feb 2025 19:25:45 GMT