In OData/REST service I want to allow date parameters startDate and endDate that marks the daterange of data returned. Example: GET /events?startDate=XXX&endDate=YYY Questions: What are the standard formats for date and time in URL? Should I consider adding a timezone (or UTC offset)? What is expected if timezone was not added?

accepted way to send date and time with timezone parameter in URL

In OData/REST service I want to allow date parameters startDate and endDate that marks the daterange of data returned. Example:

GET /events?startDate=XXX&endDate=YYY

Questions:

What are the standard formats for date and time in URL?
Should I consider adding a timezone (or UTC offset)? What is expected if timezone was not added?