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