Originally Posted by BIZAL
... rounded upwards to the nearest full 20 minutes and would be billed based on the number of 20 minute units used.
...and people used to complain about BT rounding up telephone charges to the nearest minute, rather than billing per second!!!
I think that this could put a lot of people off. A standard 'time recording unit' across all businesses and industries I have come across is 6 minutes - is there a reason why you are thinking of using such a high measured unit?