futures

Hi there, Thank you for you help on my previous question, it makes sense. When picking a future, date, for example if the exam says today is 01/12/16 a payment of £1m is due in 4 months time so 31/03 and the choice of futures i have are as follows: March future June future would I pick the March future, or would i pick the June future as it's after the date? Thanks, Piyaa