"Sun, 23 Jun 2024 19:06:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240623
Only TIME
19:06:39
General datetime
2024-06-23 19:06:39Z
For Database
2024-06-23 19:06:39
For HTTP1.1
Sun, 23 Jun 2024 19:06:39 GMT