Hi there, sorry if this has already been asked before - have searched but cant find something that fits

Scenario:
We live stream football (Soccer) matches, which has a time from 00:00 to 45:00 (and 2nd half 45:00 to 90:00)
After the 45 mins has completed, but whilst play continues (ie in additional time) I need the 45:00 to stop at 45:00, but a 2nd clock starting at 0:00 to commence for the additional time. There is no end time for this, although normally max 15, but in theory could go on indefinitely

Current Solution:
At present I have 2 Video files, lasting an hour which is the actual clock (created in after effects) - see below
Capture.JPG (7kb) downloaded 0 time(s).

Would Like:
Ideally I would like to run this all through vmix, with the scoreboard on an input (prob need 2 per half, 1 for 0-45 & the other for 45+)
The initial clock would start from streamdeck shortcut, but the transfer at 45:00 (or 90:00) would be automatic

Is this even possible?

Any help appreciated

I hadn't considered Triggers - but can see the benefit of that

Quick question though is can a countdown (up in my case) be started just by making it visible? If so, that would so work. If not, the other (convoluted) way is to start both timers at once, but have the 'Additional time' timer start at -45 mins, so when the 45 mins countdown stops on the main timer, the additional timer would then be at 0 and just continue.