This study examines the cyclical concept of time that Indigenous cultures, particularly Native Americans, hold sacred. By investigating the cosmologies (or worldviews) Native Americans and Indians hold regarding time, this paper offers a comparative model that sheds light on both cultures' understanding of time—not as something to be counted or measured like a series of endless numbers, but as the sacred rhythm that guides the physics of nature and the beat of the lives of communities. The paper investigates the lunar calendars and seasonal ceremonies of Native cultures in concert with the Indian Yugas (the cycles of time that form their calendar), and in so doing, it raises the possibility that both cultures have similar (and similar-sounding) philosophies about time, even when they are claimed to be different.