I've checked it on dswp jump server but it didn't works

The following commands can be used when timer works:
/ready: puts player status as RDY. When player starts one jump path, status changes to RUN and timer starts counting.
!record: shows your personal map record.
!maprecord: shows the player who did the best time of the map.
I've 2 demo records, 1st record is [dswp] JUMP server and timer doesn't work and 2nd record is other server with timer working.
The maps of the records are a bit different, ut4_bstjumps_b4 and ut42_bstjumps_u2. Anyway !record and !maprecord commands don´t work on dswp server.
I think it is a interesting feature

---------update----------
There are some new versions of maps whose name starts with ut42_ instead of ut4_. For example, bstjumps and jupiter have new version, i think the timer works with new versions of maps