"Sun, 12 May 2024 18:34:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240512
Only TIME
18:34:51
General datetime
2024-05-12 18:34:51Z
For Database
2024-05-12 18:34:51
For HTTP1.1
Sun, 12 May 2024 18:34:51 GMT