"Sun, 19 May 2024 12:13:23"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
12:13:23
General datetime
2024-05-19 12:13:23Z
For Database
2024-05-19 12:13:23
For HTTP1.1
Sun, 19 May 2024 12:13:23 GMT