"Tue, 21 Jan 2025 17:42:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250121
Only TIME
17:42:56
General datetime
2025-01-21 17:42:56Z
For Database
2025-01-21 17:42:56
For HTTP1.1
Tue, 21 Jan 2025 17:42:56 GMT