"Sun, 19 May 2024 18:54:27"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
18:54:27
General datetime
2024-05-19 18:54:27Z
For Database
2024-05-19 18:54:27
For HTTP1.1
Sun, 19 May 2024 18:54:27 GMT