Chess Clocks and Time Controls

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KneeBurr
Got our first chess clock for my son's first tournament tomorrow. It will be a G/25, d5 time control. The clock takes any leftover on the delay and adds it to your time. I also assumed the delay was simply that -- the amount of time before your clock starts. So with the clock, if you take 2 seconds to make your first move, you'll have 25:03 remaining. In my understanding, you would just have 25. Which is right?
notmtwain
KneeBurr wrote:
Got our first chess clock for my son's first tournament tomorrow. It will be a G/25, d5 time control. The clock takes any leftover on the delay and adds it to your time. I also assumed the delay was simply that -- the amount of time before your clock starts. So with the clock, if you take 2 seconds to make your first move, you'll have 25:03 remaining. In my understanding, you would just have 25. Which is right?

Why not try it yourself? You are going to have to learn how to run the clock anyway.

jgmiddlebrooks
d5 means delay five seconds before your clock starts running. Your clock will never have more than 25 minutes on it under your example. In you're 25:03 example, you are using an increment, sometimes shown as a +5. Anything remaining on your increment gets added to your total time. Thus, using your numbers, if you moved within five seconds for every move, your clock will never go below 25:00 and would probably have more time on it at the end of the game
KneeBurr
jgmiddlebrooks wrote:
d5 means delay five seconds before your clock starts running. Your clock will never have more than 25 minutes on it under your example. In you're 25:03 example, you are using an increment, sometimes shown as a +5. Anything remaining on your increment gets added to your total time. Thus, using your numbers, if you moved within five seconds for every move, your clock will never go below 25:00 and would probably have more time on it at the end of the game

That was my understanding. The clock doesn't work right then. Oh well.