php date functions

formatted date .... 2025-05-22

formatted time .... 13:13:26 UTC

predefined date constants

date atom ......... 2025-05-22T13:45:26+00:00

date cookie ....... Thursday, 22-May-2025 13:45:26 UTC

date iso8601 ...... 2025-05-22T13:45:26+0000

date rfc822 ....... Thu, 22 May 25 13:45:26 +0000

date rfc850 ....... Thursday, 22-May-25 13:45:26 UTC

date rfc1036 ...... Thu, 22 May 25 13:45:26 +0000

date rfc1123 ...... Thu, 22 May 2025 13:45:26 +0000

date rfc2822 ...... Thu, 22 May 2025 13:45:26 +0000

date rfc3339 ...... 2025-05-22T13:45:26+00:00

date rss .......... Thu, 22 May 2025 13:45:26 +0000

date w3c .......... 2025-05-22T13:45:26+00:00