Diffrence between till/to"

until

We use until or till to indicate that something continues up to a particular point in time and then stops:

• Don't bother saving me any supper - I shan't be home till late.
• We had to stay in the exam room until the end of the exam. We couldn't leave early even if we had finished.
• I had no umbrella so waited until the downpour was over before I left the shop.
• We don't need to be at the stadium until the first race is over so we don't need to leave home till eleven o' clock.