"Sat, 27 Jul 2024 18:34:51"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240727
Only TIME
18:34:51
General datetime
2024-07-27 18:34:51Z
For Database
2024-07-27 18:34:51
For HTTP1.1
Sat, 27 Jul 2024 18:34:51 GMT