"Wed, 18 Jun 2025 19:05:49"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250618
Only TIME
19:05:49
General datetime
2025-06-18 19:05:49Z
For Database
2025-06-18 19:05:49
For HTTP1.1
Wed, 18 Jun 2025 19:05:49 GMT