"Sun, 19 May 2024 22:39:29"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
22:39:29
General datetime
2024-05-19 22:39:29Z
For Database
2024-05-19 22:39:29
For HTTP1.1
Sun, 19 May 2024 22:39:29 GMT