"Mon, 27 Jan 2025 21:35:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250127
Only TIME
21:35:51
General datetime
2025-01-27 21:35:51Z
For Database
2025-01-27 21:35:51
For HTTP1.1
Mon, 27 Jan 2025 21:35:51 GMT