.TP
.B timew split @<id> [@<id> ...]
Ѕplits an interval into two equally sized adjacent intervals, having the same
tags. Using the 'summary' command, and specifying the ':ids' hint shows interval
 IDs. Using the right ID, you can identify an interval to split. For example,
show the IDs:

  $ timew summary :week :ids

Then having selected '@2' as the interval you wish to split:

  $ timew split @2

See also 'join', 'lengthen', 'shorten'.