"Mon, 13 Jan 2025 18:44:03"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250113
Only TIME
18:44:03
General datetime
2025-01-13 18:44:03Z
For Database
2025-01-13 18:44:03
For HTTP1.1
Mon, 13 Jan 2025 18:44:03 GMT