"Sun, 16 Jun 2024 16:17:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
16:17:15
General datetime
2024-06-16 16:17:15Z
For Database
2024-06-16 16:17:15
For HTTP1.1
Sun, 16 Jun 2024 16:17:15 GMT