happen at the same time

See: concur
References in classic literature ?
Let us however consider what is to be done when all these happen at the same time to inhabit the same city.
1 : to happen at the same time <The band's performance is scheduled to coincide with the fireworks.
The next social forum, scheduled for India in 2004, will not happen at the same time as the World Economic Forum, giving participants an opportunity to protest the latter.
San Fernando Valley secession leaders scored a major victory Wednesday when the county's lawyer ruled that the vote on cityhood should happen at the same time that leaders of the possible new city are chosen.
If both things happen at the same time, and the cost is more than our $25-million deductible, the insurance triggers," Spencer explains.
1 : a situation in which things happen at the same time without planning <It was a coincidence that we chose the same week for vacation.
I don't believe I've ever seen all three of those plays happen at the same time,'' Brundage said.