"Sat, 25 Jan 2025 20:21:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250125
Only TIME
20:21:56
General datetime
2025-01-25 20:21:56Z
For Database
2025-01-25 20:21:56
For HTTP1.1
Sat, 25 Jan 2025 20:21:56 GMT