So what I am wondering is, during the 24 hour preparation, I know if you change your war base, it changes on the war map, I understand that. The question is, when is the very last minute you could SWITCH war bases to a different one and it still count and use the new one in war? For example, on my maxed TH 5, I have a joke war base, everything spread so super super easy 3 star, and I have my base that I want to use, I like the people to think its a easy win, but last time I tried to switch it didn't switch in time so the free 3 star base was my war base for that war. So when is the last minutes you could change bases and have it count? Please answer fast, at war now.

  • The last second ?
    – GoodSp33d
    Mar 14, 2015 at 10:29
  • I doubt it. In the last 1 - 2 minutes in Attack phase, you can't attack. So in the last 1 - 2 minutes you shouldn't be able to change your war base. Just edit your base about 5 minutes before prep day ends.
    – unbindall
    Mar 14, 2015 at 14:27
  • 2
    @DominatorX I have attacked in last second just to prolong the war. Its not mentioned anywhere that you cannot attack or change war base in last minute.
    – GoodSp33d
    Mar 15, 2015 at 11:19
  • That's weird. If I attack in the last 2 minutes, it says war is already over.
    – unbindall
    Mar 15, 2015 at 12:39

1 Answer 1


I'm afraid there is no definite answer to your question.

At the very moment you switch the base on your phone, the information will take some time to be processed, sent to Supercell, and applied into the servers managing war bases. This delay can be extremely small, so in theory you could do it at the last seconds. But if a server is busy, some low priority requests can be queued for later processing in order to keep resources for important matters.

You will never know how long it will take for your change to be applied. So, I advise you to do it a few minutes ahead.

  • I would add there's also the element of the quality of your connection to consider. The slower it is (or if it is not stable), chances are the base won't be changed if one does it at the last minute.
    – Jerry
    Mar 25, 2015 at 13:10

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