"Thu, 15 Aug 2024 15:57:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240815
Only TIME
15:57:21
General datetime
2024-08-15 15:57:21Z
For Database
2024-08-15 15:57:21
For HTTP1.1
Thu, 15 Aug 2024 15:57:21 GMT