Lists data fields that differ from the last major version (see versions above). Inherited differences in locales are suppressed, except where the source locales are different.
| Section | Page | Header | Code | Locale | Old | New | Level |
| Date & Time | Gregorian | Formats - Flexible - 12 Hour Time Formats | Ehm | lv | E, h:mm a | E, h:mm a | moderate |
| Ehms | E, h:mm:ss a | E, h:mm:ss a |
| h | h a | h a |
| hm | h:mm a | h:mm a | basic |
| hms | h:mm:ss a | h:mm:ss a |
| hmsv | h:mm:ss a v | h:mm:ss a v |
| hmv | h:mm a v | h:mm a v | moderate |
| Formats - Intervals - 12 Hour Time Formats | h/h | h–h a | h–h a |
| hm/h | h:mm–h:mm a | h:mm–h:mm a |
| hm/m |
| hmv/h | h:mm–h:mm a v | h:mm–h:mm a v |
| hmv/m | h:mm–h:mm a, v | h:mm–h:mm a, v |
| hv/h | h–h a v | h–h a v |
| Generic | Formats - Flexible - 12 Hour Time Formats | Ehm | E, h:mm a | E, h:mm a |
| Ehms | E, h:mm:ss a | E, h:mm:ss a |
| h | h a | h a |
| hm | h:mm a | h:mm a |
| hms | h:mm:ss a | h:mm:ss a |