The phrase "there is no other time" implies a sense of urgency and importance. There are many synonyms that can convey this same meaning such as "now or never", "time is of the essence", "this is the moment", "the clock is ticking", "the opportunity won't wait", "don't delay", "seize the day", "make the most of the moment", "this is a critical time", "the moment of truth", "the time has arrived", and "this is the chance of a lifetime". By using these powerful phrases, one can emphasize the importance of the moment and inspire action and determination.