# Keyword Analysis & Research: time and date calculator

## Frequently Asked Questions

How do you calculate date?

You can also calculate your due date by counting back three months from the first day of your last period, adding seven days, and then adding a year. This will provide you with an estimated due date. Naegele's rule provides an alternative for calculating your due date that's easier for some people to do in their head.

How do you calculate the number of days between two dates?

The easiest way to calculate days between dates in Excel is by subtracting one date from another: Newer date - Older date. For example, to find out how many days are between dates in cells A2 and B2, you use this formula: =B2 - A2. Where A2 is an earlier date, and B2 is a later date.

How much time between two dates?

It is 7777 days from the start date to the end date, but not including the end date. Or 21 years, 3 months, 15 days excluding the end date. Or 255 months, 15 days excluding the end date.