"Thu, 20 Jun 2024 10:21:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240620
Only TIME
10:21:15
General datetime
2024-06-20 10:21:15Z
For Database
2024-06-20 10:21:15
For HTTP1.1
Thu, 20 Jun 2024 10:21:15 GMT