Refreshing page when seconds equals "0"

I would like to be able to refresh my webpage every minute, on the
minute, so when the seconds=0 on my servers clock. I'm sure I'll have
to use

var seconds = now.getSeconds()

and put this into a loop somehow.

I'm sure this is simple stuff but just can't seem to get my head round
it. I don't want to use the <meta http-equiv="refresh" content="60">
because this will just refresh the page 60 seconds after the visitor
arrives and not when the minute changes.

Any help would be appreciated. Kind regards.

.

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