"Sun, 16 Jun 2024 21:20:10"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
21:20:10
General datetime
2024-06-16 21:20:10Z
For Database
2024-06-16 21:20:10
For HTTP1.1
Sun, 16 Jun 2024 21:20:10 GMT