Schedule the meetings for the same time. Keeping employees in a rhythm allows them to not have their work unexpectedly disrupted.
The stand up is to communicate, not solve. If your team has a regularly planned stand up meeting, “lack of communication” is no longer an excuse for problems. Just be sure to protect the stand up meeting time by deferring larger discussions to private meetings.
(BTW: If you’re interested in the nitty-gritty of the stand up meeting, Jason Yip wrote an entire manual.)