What is Motorola Camera app's Photo naming convention?
The format follows the pattern used in DateFormat class from Java/Android. It's:


IMG: constant prefix for Images
yyyyMMdd: date


years (4-digit)
months (2-digit)
days (2-digit)

kkmmssSSS: time


hours (2-digit in 24-hour format, from 1-24)
minutes (2-digit)
seconds (2-digit)
milliseconds (3-digit)