Idle Time refers to the time during which workers are paid but are not actively engaged in productive work due to reasons like machine breakdowns, lack of materials, or waiting for instructions. It’s typically considered an avoidable cost that businesses seek to minimize.
Overtime is the additional time worked beyond regular working hours, usually compensated at a higher pay rate. It can be planned (to meet increased demand) or unplanned (to cover for staff shortages). While overtime can increase output, excessive reliance can lead to higher costs and potential worker fatigue, affecting efficiency and quality.
Accounting of Idle Time:
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Normal Idle Time:
It is considered an unavoidable part of operations (e.g., breaks, machine setup time). It is included in the product cost and charged to factory overheads.
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Abnormal Idle Time:
Occurs due to unexpected factors like strikes or machinery failure. It is not included in product costs and is charged directly to the profit and loss account as a period cost.
Accounting of Overtime:
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Normal Overtime:
The extra premium paid is charged to specific jobs or orders that require overtime work. It can be included in direct labor costs.
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Abnormal Overtime:
Premiums due to poor planning or emergencies are treated as overheads or charged directly to the profit and loss account.
Control of Idle Time:
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Efficient Production Planning:
Proper scheduling and resource allocation reduce delays and waiting times.
- Preventive Maintenance:
Regular equipment maintenance minimizes breakdowns.
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Timely Material Supply:
Ensuring a steady flow of materials prevents delays.
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Training and Supervision:
Well-trained workers and effective supervision prevent unnecessary delays.
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Job Design and Workflow Analysis:
Streamlining processes reduces non-productive time.
Table that shows the accounting of idle time and overtime, with examples:
| Aspect | Type | Accounting Treatment | Example |
| Idle Time | Normal Idle Time | Charged to factory overheads, included in product cost | Regular tea breaks, setup time, unavoidable delays |
| Idle Time | Abnormal Idle Time | Charged to the profit and loss account as a period cost | Machine breakdown due to negligence, strikes, power failure |
| Overtime | Normal Overtime | Charged to the specific job or order; part of direct labor | Urgent customer order requiring additional hours |
| Overtime | Abnormal Overtime | Treated as overheads or charged to profit and loss account | Overtime due to poor planning, emergency work without proper scheduling |
Control of Overtime:
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Proper Work Scheduling:
Distribute work evenly to avoid reliance on overtime.
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Hiring Temporary Staff:
For peak periods, hire additional workers instead of using overtime.
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Incentive Schemes:
Implement systems that reward productivity during regular hours.
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Monitor Overtime Usage:
Regularly review and analyze overtime trends.
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Automation and Process Improvements:
Implement technologies that boost productivity within standard working hours.