"Mon, 19 Aug 2024 16:37:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240819
Only TIME
16:37:21
General datetime
2024-08-19 16:37:21Z
For Database
2024-08-19 16:37:21
For HTTP1.1
Mon, 19 Aug 2024 16:37:21 GMT