When looking for alternative ways to express the phrase "it's time," there are a variety of options to choose from. One might say "it's about time" to express their impatience or relief that something has finally happened. Alternatively, "it's high time" conveys a sense of urgency, suggesting that action needs to be taken immediately. For a more formal tone, one might use "it is incumbent upon us" to imply a sense of responsibility or duty. Other options include "the moment has arrived," "the hour is nigh," or simply "now is the time." Regardless of the phrasing used, the sentiment should be clear: the appropriate moment has arrived for something to occur.