"Sun, 23 Jun 2024 19:45:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240623
Only TIME
19:45:13
General datetime
2024-06-23 19:45:13Z
For Database
2024-06-23 19:45:13
For HTTP1.1
Sun, 23 Jun 2024 19:45:13 GMT