"Mon, 15 Jul 2024 04:40:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
04:40:23
General datetime
2024-07-15 04:40:23Z
For Database
2024-07-15 04:40:23
For HTTP1.1
Mon, 15 Jul 2024 04:40:23 GMT