ONLYT
OnlyT provides a time-of-day display and a talk timer function that counts up or down to provide valuable feedback to the speaker. Available in multiple languages.

AUTOMATIC TALK TIMES
The software presents the times for all of the meeting items and automatically updates the times as they change from one week to the next. For example, it knows the duration of each item in this week's "Ministry" section of the midweek meeting, and which of them are student talks and so eligible for the overtime bell.
ADAPTIVE TIMING
During the meeting, OnlyT keeps track of overall progress and can optionally adapt the time given to talks according to the current timing status.
DISPLAY
The talk timer can be displayed on a chosen PC monitor or a mobile device connected wirelessly to the network.
OPEN SOURCE
OnlyT is free and open-source. See the project page.
Choose OnlyTSetup.exe from the release page.