"Thu, 20 Jun 2024 18:15:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240620
Only TIME
18:15:20
General datetime
2024-06-20 18:15:20Z
For Database
2024-06-20 18:15:20
For HTTP1.1
Thu, 20 Jun 2024 18:15:20 GMT