Time Calculator is a free Android-based app that helps you calculate the time between two periods. It is designed to calculate hours, minutes, seconds, years, weeks, days, and even convert them. The app has a user-friendly interface, with a modern flat design that makes it easy to use.

One of the best features of Time Calculator is that it saves the most recent calculation results for easy reference. It also includes a Time Between section, which allows you to calculate the time between two dates. For example, it can calculate the time between Nov 9, 2017, and Dec 22, 2017, which is 6 weeks and 1 day. Additionally, the app includes a Time Added or Subtracted section, which enables you to add or subtract time from a specific date.

Overall, Time Calculator is a useful app for those who need to calculate time for work or other purposes. The app is constantly updated to improve the user experience, and it includes a feedback email address for users to provide suggestions or report issues.