Show batch of notifications once in an hour

Lots of notifications distract from work but ignoring them is bad. Is there any possibility to receive all notifications like on every 0 minute of an hour. Something like: 6:30 - New calendar notification [not shown, scheduled] 6:31 - New skype notification [not shown, scheduled] 6:45 - New slack notification [not shown, scheduled] 7:00 - Show all notifications [calendar, skype, slack] I tried to google how to do that, but I didn't find.