Need help with a timer formula

I’ve got a job timer with a StartTime field, an Amount field and an EndTime field. Start and stop are determined by a dedicated button for each.
I would like the Amount field to be updated each second with (CurrentTime - StartTime) * HourlyWage
I’ve been able to do formulas, but not sure how to have a field keep updating

Is this even possible?
I can’t imagine little ol’ me coming up with something Grist can’t do!

Thanks!

time tracker
Hi @Bruce_Westfall you could use the widget builder for that!

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@celine_delval - This timer is the cutest :eyes: can you share the code for it or a link to a copy of a document with it? I track my cross-stitching time on projects and this would be perfect :joy:

I could share this one’s code, do you like it? It’s a 2 seats time tracker
time tracker

@celine_delval Yea that would be great!