40 minutes ago was Loading..., December 21, 2024. In a 24-hour time clock it was 11:42 and 11:42 AM in 12-hour. The key to understanding this time calculation is understanding the time zone and location. For example, 40 minutes ago in EST is 2024-12-21 11:42:22.741753-05:00. But for this same calculation to PST makes the time 2024-12-21 11:42:22.741753-05:00. This difference is key for anytime you travel across the globe. Make more calculations below and never miss a date!