how many minuts it takes to summon to start bear in kingshot

In Kingshot, the Bear Hunt event lasts 30 minutes from activation, and alliance guides say rallies can be started right away during that window.

If you meant how long to wait before starting the bear , the common answer is 0 minutes — the event begins as soon as it is summoned, and some alliances stagger rallies at 1 minute and 2 minutes after launch for coordination.