"Sun, 30 Jun 2024 14:51:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240630
Only TIME
14:51:15
General datetime
2024-06-30 14:51:15Z
For Database
2024-06-30 14:51:15
For HTTP1.1
Sun, 30 Jun 2024 14:51:15 GMT