"Sun, 19 May 2024 18:04:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
18:04:19
General datetime
2024-05-19 18:04:19Z
For Database
2024-05-19 18:04:19
For HTTP1.1
Sun, 19 May 2024 18:04:19 GMT