"Fri, 23 Aug 2024 15:40:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240823
Only TIME
15:40:23
General datetime
2024-08-23 15:40:23Z
For Database
2024-08-23 15:40:23
For HTTP1.1
Fri, 23 Aug 2024 15:40:23 GMT