To determine your Kilowatt-hours(kWh) for a given time, write down, from right to left, the number each pointer has passed. Note that the tenth and thousandth dials are counter clockwise. Make sure to record the number the dial has passed. For example, if the hundredth's dial points to 7 but the tenth's dial has not yet reached 0, the hundredth's dial is recorded as 6.
Just like the odometer in a vehicle, the digital meter's numbers increase with usage. To determine your usage, compare a current read with the last kilowatt-hour read listed on your bill.