Totalling the durations recorded in my table

Here is an entry on today’s journal page:

Catch up Christine & Bard
client:: [[Coaching Enterprise Architects]]
task:: Planning
date:: [[18-07-2022]]
creation-time:: 07:58
time-tracked:: 00:41:43

The time-tracked is set by the logseq-time-tracking plugin. The format is hh:mm:ss.