|Date plus days|
This online calculator adds or subtracts a given number of days to or from a given date.
|Days between dates. The historical version.|
Calculates number of days between two dates taking in account the date of transition to Gregorian calendar.
|Week days calculator|
The calculator counts number of week days between two selected dates.
|Time between two dates with time zone|
To calculate number of days, hours, minutes and seconds between two dates with time zones.