"Sun, 16 Jun 2024 16:09:36"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
16:09:36
General datetime
2024-06-16 16:09:36Z
For Database
2024-06-16 16:09:36
For HTTP1.1
Sun, 16 Jun 2024 16:09:36 GMT