There is a time and a place for everything
there is a time and (a) place for everything
There is an appropriate and acceptable situation or scenario in which to do something. Usually used to express or imply that it is not appropriate here and now. I know you want to go over the details of what happened, but there is a time and a place for everything. Right now, your sister just needs your unconditional support. Please don't go asking him for money at the party. There is a time and a place for everything.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
There is a time and a place for everything.
Prov. Different things are appropriate on different occasions. There is a time and a place for everything, but this formal dinner is not the time or the place to eat with your fingers.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.