Datetime Format
===============
| Day Format | Value/Example |
| ------------- | ------------- |
| d | 01 through 31 |
| D | Mon through Sun |
| j | 1 through 31 |
| l (lowercase 'L') | Sunday throguh Saturday |
| N | 1 (Monday) to 7 (Sunday) |
| S | st, nd, rd, th |
| w | 0 (sunday) through 6 (Saturday) |
| z | 0 through 365 |
| Week Format | Value/Example |
| ------------- | ------------- |
| W | 42 (42nd week in year) |
| Month Format | Value/Example |
| ------------- | ------------- |
| F | January through December |
| m | 01 through 12 |
| M | Jan through Dec |
| n | 1 through 12 |
| t | 28 through 31 |
| Year Format | Value/Example |
| ------------- | ------------- |
| L | 1 (leap year), 0 otherwise |
| o | same as Y, except that it use week number to decide which year it falls onto |
| Y | 1991, 2012, 2014, ... |
| y | 91, 12, 14, ... |
| Time Format | Value/Example |
| ------------- | ------------- |
| a | am or pm |
| A | AM or PM |
| B | 000 through 999 |
| g | 1 through 12 |
| G | 0 through 23 |
| h | 01 through 12 |
| H | 01 through 23 |
| i | 00 throguh 59 |
| u | 123456 (microseconds) |
| Timezone Format | Value/Example |
| ------------- | ------------- |
| e | UTC, GMT, Atlantic/Azores |
| I (capital i) | 1 (daylight), 0 otherwise |
| O | +0200 |
| P | +02:00 |
| T | EST, MDT, ... |
| Z | -43200 through 50400 (timezone offset) |
| Date/Time Format | Value/Example |
| ------------- | ------------- |
| c | 2004-02-12T15:19:21+00:00 |
| r | Thu, 21 Dec 2000 16:01:07 +0200 |
| U | seconds since Jan 1 1970 00:00:00 GMT |