List files by timestamp, regardless of directory depth, i.e. all files in the current or specified directory tree are listed in order from oldest to newest, showing timestamp, size and full pathname.

The timestamp column is color-coded:

Color	Age
Blue	Older than a year
Cyan	In the last year
Green	In the last week
Yellow	In the last day
Red	In the last hour

By default, skips names beginning with . (unless they were explicitly specified on the command line). The -a option overrides this.