"Mon, 30 Jun 2025 14:45:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250630
Only TIME
14:45:11
General datetime
2025-06-30 14:45:11Z
For Database
2025-06-30 14:45:11
For HTTP1.1
Mon, 30 Jun 2025 14:45:11 GMT