This online calculator determines the amount of time that has elapsed between a specific date and the current moment.

The calculator converts Julian calendar date to Gregorian calendar date taking in account the calendar era.

Calculates number of days between two dates taking in account the date of transition to Gregorian calendar.

This calculator allows you to see the current time in various cities and locations around the world, or to convert a specific date and time for your own location into the corresponding time in other cities. It takes into account the time zone differences between locations and factors in daylight saving time where applicable.

The calculator converts time to percent and vice versa.