Quick Answer
Time-of-use billing records peak and off-peak units separately. Peak units use the higher applicable rate, while off-peak units use the lower rate. The exact rate and peak-hour schedule must be checked on the current tariff notification and your provider's bill because timings and adjustments can change.
What To Check on Your Bill
How ToU Electricity Billing Works
A time-of-use meter stores consumption in separate registers. Your energy charge is therefore not calculated from one flat unit rate: peak units and off-peak units are multiplied by their respective applicable rates.
The final payable amount can still include FCA, QTA, taxes, fixed charges, arrears, and provider-specific items.
Which Loads Can Be Shifted?
Washing machines, water pumps, ironing, some charging loads, and planned appliance use may be moved outside peak hours. Refrigeration and essential comfort loads are less flexible.
Load shifting only helps if the connection is actually billed on a ToU tariff. A standard single-rate residential bill does not gain a tariff advantage merely because an appliance runs late at night.
Practical Checks
Official Sources
Frequently Asked Questions
What is the difference between peak and off-peak units?
Peak units are consumed during the provider's higher-rate time window. Off-peak units are consumed outside that window and use the lower applicable ToU rate.
Are peak hours the same throughout Pakistan?
Do not assume so. Confirm the current schedule shown by your electricity provider and applicable tariff notification.
Does using electricity at night always cost less?
Only if your connection uses time-of-use billing and the usage falls in the official off-peak window.