Options for measuring time units
The default time unit in MYOB Accounting Plus is hourly, and you can enter fractional amounts if you like. For example 90 minutes would equal 1.5 hourly units.
You can change the default unit if you like. You can track time in 1-, 6-, 10-, 12-, 15- or 30-minute units. To change the default unit, display the System view of the Preferences window; mark the preference labelled "For Time Billing, Enter Time in Special...". and choose the time unit you want from the list.