[automerger skipped] Implement the method for time short string am: 3c94f84446 -s ours

am skip reason: Merged-In I52788abd4f09bb32259b00f915dbe704ac0442af with SHA-1 71628170ad is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/26934717

Change-Id: I33c09ecca23b2d205a9fd97879fbfb29d29921ab
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>