One of my colleagues has decided to retire next month. We got this person a retirement clock to display the number of days remaining. Setting today’s time was easy enough, but it seems many people are having trouble setting the target date. The target date is the retirement date and time that the clock will countdown to.
TL;DR — hold down the Mode button for several seconds and you will get a different screen for setting the target date and time. Normally, pressing Mode button will let you change the clock.
Here is the PDF for the above image: countdown-clock