"Sun, 16 Jun 2024 17:02:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
17:02:35
General datetime
2024-06-16 17:02:35Z
For Database
2024-06-16 17:02:35
For HTTP1.1
Sun, 16 Jun 2024 17:02:35 GMT