Track via events API, allow custom timestamp

having a question now about tracking through the API with https://plausible.io/docs/events-api :

Is there any way we can provide a timestamp so you track with the provided timestamp instead of just using the timestamp of when you received the event?

We have multiple use cases for this: Our custom tracking server has a technical problem (e.g. queue system stopped working) and was restarted after 2 days. now we have no data for those 2 days, but it will send all the events through the queue again. Second case: we have offline users in our mobile app which come back online and we need to track those events that happened while offline all at once.

Can be sent as a UTC timestamp or whatever floats your boat. and if none is sent, it could be the same behaviour as it is not, so no breaking change.