"Mon, 20 Jan 2025 05:34:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250120
Only TIME
05:34:56
General datetime
2025-01-20 05:34:56Z
For Database
2025-01-20 05:34:56
For HTTP1.1
Mon, 20 Jan 2025 05:34:56 GMT