Just found a good way of making a 90 minute time overlay for a soccer game.
After nearly an hour of googling, I found an After Effects expression I could use to make a text layer that counts up to ninety minutes in min:sec format.
Download the After Effects Project here , open it and export the pre-made counter to a Quicktime Animation video with alpha channel (millions of colors+).
Import the movie to your desired software (in my case Telestream Wirecast)
The counter looks like this, but you can change the fonts as you like :
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