"Wed, 19 Jun 2024 08:54:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240619
Only TIME
08:54:21
General datetime
2024-06-19 08:54:21Z
For Database
2024-06-19 08:54:21
For HTTP1.1
Wed, 19 Jun 2024 08:54:21 GMT