21 minutes ago was Loading..., December 21, 2024. In a 24-hour time clock it was 22:09 and 10:09 PM in 12-hour. The key to understanding this time calculation is understanding the time zone and location. For example, 21 minutes ago in EST is 2024-12-21 22:09:36.670712-05:00. But for this same calculation to PST makes the time 2024-12-21 22:09:36.670712-05:00. This difference is key for anytime you travel across the globe. Make more calculations below and never miss a date!