"Mon, 24 Jun 2024 18:39:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240624
Only TIME
18:39:54
General datetime
2024-06-24 18:39:54Z
For Database
2024-06-24 18:39:54
For HTTP1.1
Mon, 24 Jun 2024 18:39:54 GMT