Chronology lets you run and view multiple timers simultaneously.
You can create up to 20 separate timers that can be started, paused, and reset individually or as a group. Timers can count upwards indefinitely or count downwards from a specified time. Once a timer reaches that specified time, it continues counting down so that you know how much time has passed since the countdown finished.
Each timer can play an alert sound at the end of a countdown that can play up to 30 times. On iOS 4, Chronology supports Background Alerts so your alarms will ring in the background. (If alerts and sounds stop working after upgrading to iOS 5, go to Settings→Notifications and make sure that Chronology is enabled in Notification Center. Also, check to see that the mute switch isn't enabled).
Chronology offers advanced features like saved timer sets, reports, looping timers, and timer confirmation to prevent you from accidentally stopping or starting timers.
Chronology is designed to be streamlined and hassle-free even when providing those advanced features. It's fast and easy to use.