"Wed, 19 Jun 2024 20:04:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240619
Only TIME
20:04:21
General datetime
2024-06-19 20:04:21Z
For Database
2024-06-19 20:04:21
For HTTP1.1
Wed, 19 Jun 2024 20:04:21 GMT