Date Calculator Whiz is a powerful date calculator application for iPhone like no other.

Did you ever want to know the date x work days from now?

Or, did you ever want to calculate when to start a project from a deadline date and number of available work days?

Or perhaps, did you ever wonder how many weeks to Christmas?

With this powerful application, you can instantly perform date calculations in split seconds! Combining a sleek intuitive interface with useful features like custom calendars and saved calculations, calculating dates and managing schedules will now be a breeze.

With Date Calculator Whiz you can:

Calculate interval in weeks, days, or work days, between two dates.
Calculate the end date with a starting date and an interval.
Calculate the start date with an ending date and an interval.

Features:

Sleek intuitive interface and attractive design. When you calculate a value, a lock appears next to the result field and you can change the other two variables to tweak your results, or clear all to start a new calculation.
A Today checkbox next to start and end date lets you quickly select today’s date.
Email your calculations instantly from within the app.
Save your calculations and they will dynamically update the next time you open the app. Think “Days to Christmas!”
Create your own custom calculator by locking one of the three values for quick future calculations.
Create and add your own custom calendar with holidays for work day calculations.