TKWeek

TKWeek is a universal date and calendar tool.

Need to convert between a week number and a date? Do it.

Want some information about a date, find out if a year is a leap year, calculate the number of days, working days (business days), weeks, months and years between two dates and add or subtract days, weeks or months to a given date? With TKWeek, it‘s no hassle.

TKWeek also maintains a list of annual and fixed events. So, you want to know when Easter takes place? This app will tell you. Other special days TKWeek is aware of: Valentine's Day, ...

TKWeek displays the birthday and anniversary(s) of your Google Contacts, too.

TKWeek has several international public holidays built in. And you can add your personal events, too.

Do you want to know when Friday 13th takes place? This app will tell you.

TKWeek also offers two widgets: the first gives you information about a week, the second shows the next event.