This Chronos setting example will give you a better grasp of how the clock works overall, while giving you one of the most common time controls needed in tournament play.

How do you set 40 moves in 2.5 hours / game in 1 hour?

First, this means that the first 40 moves must be played in 2 1/2 hours. If that player makes 40 moves within that time, then 1 hour is added for the remainder of the game.

Use mode SD-2 or DL-SD2 (with delay).

You should also save it as a preset once you set them, so the next time you can access them much faster than the initial setup.

Here's how to find, set, and then save this time control on the Chronos Chess Clock.

Turn on the clock with the both play buttons pressed. Click the red button about 27 or 31 times to find SD-2 or DL-SD2 respectively. If you press it too many times, "long press" the red button to go back on at a time.

When you see either mode, press the play button on that side.

For DL-SD2 (right side), you will see 1:30:00. Now long press the red button to edit times. Make the changes you want, in this case to 2:30:00 on each side. Press the red button to see delay of 0:05. Modify as you please. Continuing pressing the red button until you see "COPY to 0". Change the 0 to 1 or higher (presets 1 to 12). I recommend 1 to 4. They are the easiest to access.

When you're ready to save the preset, hold down the red button to save. A double beep indicates you're ready.

Here's why saving the mode as a preset was a good idea.

With the clock off, I can access this preset with 2 button presses. Since I saved mine as preset 2, pressing the red button twice to turn on the clock brings it up instantly.

That's just one way to set the Chronos chess clock of the many hundreds of options available.

It's the most versatile and reliable timer.

If you want more information on the SD-1 and DL-SD2 modes, see pages 37 and 39 of the manual for explanation.