"Sat, 25 Jan 2025 16:23:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
16:23:13
General datetime
2025-01-25 16:23:13Z
For Database
2025-01-25 16:23:13
For HTTP1.1
Sat, 25 Jan 2025 16:23:13 GMT