"Wed, 15 May 2024 18:42:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240515
Only TIME
18:42:54
General datetime
2024-05-15 18:42:54Z
For Database
2024-05-15 18:42:54
For HTTP1.1
Wed, 15 May 2024 18:42:54 GMT