"Tue, 21 Jan 2025 23:27:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250121
Only TIME
23:27:15
General datetime
2025-01-21 23:27:15Z
For Database
2025-01-21 23:27:15
For HTTP1.1
Tue, 21 Jan 2025 23:27:15 GMT