"Apportion": 1. To allocate a money amount on a time basis. For example total profits of EUR 100,000 for a period of one year (365 days) consisting of a one month (30 days) period and an 11 months (335 days) period would be time-apportioned as follows: One month period: EUR 100,000 x 30/365 = EUR 8,21911 months period: EUR 100,000 x 335/365 = EUR 91,781 (This is also known as 'time-apportionment'.) 2. To allocate a money amount on any other systematic basis.For example, to allocate the total costs of a shared building on the basis of floor areas. 3. To allocate any amount on a systematic basis.