I forgot my iphone passcode and its showing disabled for 1 hour. How many more chances can i get to unlock as i have very important data in my phone which i dont want to loose it. Please help me

Try again in an hour. I have never had a disabled device so I don't know if it will let you try then, or if you have to proceed directly with resetting the device. If you end up having to reset it then if you have a forgotten/unknown device passcode, or have a disabled device (device unavailable or lockout screen), you unfortunately have no option but to erase the device. However, you can eventually restore the data and settings from a backup you made before the device was disabled, or if you were using iCloud to store that data. If you end up having to use a computer and you do not have one, borrow one from a friend, or go to an Apple Retail Store or Apple Authorized Service Provider. You can also use a PC with iTunes. You will likely also need your Apple ID and password. All Apple mobile devices follow the same general procedure but the link below, and other links off it, provides system and model specific instructions:

If you see an iPhone or iPad unavailable message or Security Lockout screen - Apple Support

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The amount of time you have to wait will increase exponentially with each incorrect attempt.

The only way to get in without losing data is to remember the correct passcode before the timeout increases to an amount that isn't reasonable to wait...