There are many synonyms for the phrase "proper time," all of which refer to timing that is appropriate, ideal, or optimal in some way. Some alternatives include "right time," "ideal time," "appropriate timing," "timely manner," "optimal timing," "seasonable time," "timely fashion," and "opportune moment." Each of these synonyms draws attention to the importance of timing in various contexts, from social interactions to business transactions to personal relationships. By using different words to describe the concept of "proper time," speakers and writers can vary their language to emphasize different aspects of timing and create more nuanced meaning.