"Sun, 19 May 2024 18:43:06"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
18:43:06
General datetime
2024-05-19 18:43:06Z
For Database
2024-05-19 18:43:06
For HTTP1.1
Sun, 19 May 2024 18:43:06 GMT