Need to convert between a week number and a date? With this app you can. 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, weekends, month turns and year turns between two dates and add or subtract days, weeks or months to a given date? With TKWeek, it‘s no hassle. Even a basic calendar view is at your fingertips. You can use it to flag days off. Just tap and hold until the color changes. And with My Day you see what is up on a particular day.

TKWeek also maintains a list of annual and fixed events. You can add your personal events. Additionally, it automatically displays the birthday and anniversary(s) of your Google Contacts if your device supports this. Even better: Events module and My Day show allday and multiple day events from your Google Calendar if your device supports this.

TKWeek has many national and international public holidays built in. You want to know when Reformation Day, St. Martin's Day, Christmas, Good Friday, Seven Sleepers Day, Pentecost, Ash Wednesday and Easter take place? No problem. Other special days TKWeek knows: Ice Saints, Valentine's Day, Mother's Day, Halloween, Memorial Day, Thanksgiving, Black Friday, All Saints, Martin Luther King Day, Presidents' Day, Lincoln’s Birthday, St. Patrick’s Day, Flag Day, Earth Day, Groundhog Day, Election Day, Veterans Day, Labor Day (USA), Columbus Day (USA).

Do you want to know when Friday 13th takes place? This app will tell you. TKWeek also offers a bunch of widgets. Week info shows you the current week number, the total number of weeks in a year, the first and last day of a week and the current date. Events list shows four upcoming events. Current Date is a simple widget that displays the current day of the week, date and month. Day of year shows the current day of the year (julian date) and the total number of days in a year.

IMPORTANT NOTE ABOUT PERMISSIONS: This app does NOT collect personal data. The requested permissions are needed to display Google Contacts, appointments and events in the My Day module; the app does NOT load or request ads.