"Sun, 19 May 2024 14:11:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
14:11:59
General datetime
2024-05-19 14:11:59Z
For Database
2024-05-19 14:11:59
For HTTP1.1
Sun, 19 May 2024 14:11:59 GMT