"Wed, 21 Aug 2024 18:48:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
18:48:44
General datetime
2024-08-21 18:48:44Z
For Database
2024-08-21 18:48:44
For HTTP1.1
Wed, 21 Aug 2024 18:48:44 GMT