Calculate time between two dates

• » Overview
• » Example 1
• » Usage & args
• » Example 2
• » Notes

Overview

This script returns the number of seconds, minutes, hours, days, weeks, months or years between two given dates - or between one given date and the present moment.

Example 1

Click here for the number of days between 2nd Feb 1943 and 23rd Nov 1946.

Here's the code behind this example, applied to the link's href:

Usage & args

Call the main function and pass it the arguments necessary for your calculation.

date1 (string) - a string representing the start date, in the format dd/mm/yyyy hh:mm:ss OR the string 'now', to denote the present moment.

date2 (string) - as with date1

unit (string) - a string representing the unit of measurement you require - either 'seconds', 'minutes', 'hours', 'days', 'weeks', 'months' or 'years'

Example 2

Click here for the number of hours between now and Christmas day 1543.

Here's the code behind this example, applied to the link's href:

Notes

Requests where unit == months

In these cases, months are calculated as containing an average of 4.3 weeks. Since months do not have a consistent number of days, such requests may be contentious.

The following, for example, will alert 1.02, not 1 as might be expected, as the number of weeks between 29 May and 29 June is slightly more than the 4.3 average.