Iran uses a 44-hour statutory workweek and a Saturday-Thursday schedule. Everhour helps teams plan capacity around that base.
Measure billable utilization against total capacity and see exactly how many hours you're leaving on the table each period.
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Utilization rate shows the share of available working time that became billable client work. In Iran, the denominator should start from the country's 44-hour statutory normal working time, then remove time the person was not available to work. That includes ordinary annual paid leave, qualifying paid special leave when taken, and public holidays that fall on scheduled workdays.
The result helps an owner, finance lead, or operations manager answer a practical question: did the person, role, or team have enough billable work for the capacity assigned? A 70% utilization rate means 70 out of every 100 available working hours became billable time. The remaining 30 hours went to internal work, training, administration, sales support, idle time, or other non-billable categories.
Iran's gross full-time annual capacity can be modeled as 44 × 52 = 2,288 hours before leave and holiday adjustments. The standard workweek is typically Saturday through Thursday, with Friday treated as the weekly rest day. That schedule matters because a holiday on Friday does not reduce available hours for a standard full-time employee.
Ordinary annual paid leave is one month per year including four Fridays, so the denominator should subtract the scheduled work hours covered by that leave. Employees in hard or hazardous work receive five weeks of annual leave, which creates a lower denominator. Iran also recognizes 26 national holidays, plus Labour Day for workers, but only holidays falling on scheduled workdays reduce available capacity.
Use this formula: billable hours ÷ available hours × 100 = utilization rate. If a Tehran consultant has 176 available hours in a month after the firm's calendar removes leave and scheduled-workday holidays, and 121 hours are billable client work, the utilization rate is 68.75%. At a billing rate of IRR 4,500,000 per hour, those 121 billable hours carry IRR 544,500,000 of billable value.
Keep billable hours and available hours from the same period. A monthly numerator divided by an annual denominator produces a meaningless rate. Also keep paid time not worked out of billable hours unless the client contract explicitly bills it. Vacation, marriage leave, bereavement leave, and public holidays affect availability. They do not become billable delivery time by default.
A one-off calculation is enough when you need a quick monthly check, a proposal assumption, or a simple comparison between two employees. It works best when the period is closed, leave is already known, and every billable hour has been reviewed. For a small team, a spreadsheet can hold the denominator logic if one person owns the calendar.
A managed workflow becomes necessary when utilization drives staffing, billing, or capacity planning. Iran's moving public-holiday dates and Saturday-Thursday work pattern make static annual templates easy to misread. Everhour Resource Planning gives teams visual timelines, weekly capacity, scheduled time off, and planned-vs-actual comparisons, so availability stays connected to the work schedule instead of living in a separate calculator.
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Divide billable hours by available hours, then multiply by 100. For an Iranian full-time baseline, start available hours from the 44-hour statutory week, then subtract ordinary annual paid leave and public holidays that fall on scheduled workdays. The same formula works for a person, team, client group, or department when the numerator and denominator cover the same dates.
The denominator should include working time the person was available to perform work. It should exclude ordinary annual paid leave, hazardous-work annual leave where applicable, special paid leave when taken, and public holidays that fall on scheduled workdays. Friday is the weekly rest day in the typical Saturday-Thursday work pattern, so a Friday holiday does not reduce standard available hours.
Iranian labor rules define working-time and leave inputs for the denominator, but they do not set a statutory national professional-services utilization target. A law firm, agency, consultancy, or engineering company sets its own target based on pricing, role seniority, sales coverage, internal duties, and expected non-billable work.
Many Iranian public holidays are set by the Islamic lunar calendar, so the Gregorian dates change from year to year. The number of holidays falling on scheduled workdays also changes. A denominator copied from last year can overstate or understate available capacity if it does not refresh the holiday calendar for the new period.
Carried-over leave affects the denominator when the employee actually takes it in the measured year. Employees may save up to 9 days of annual leave, so a report based only on statutory entitlement can differ from a report based on actual leave taken. Use actual time off for closed-period utilization and policy entitlement for forward planning.
Everhour Resource Planning shows member and project timelines with weekly capacity, availability gaps, scheduled time off, and planned-vs-actual time. Teams can set capacity by person and account for absences on the schedule, which keeps Iranian utilization planning tied to real availability.
Everhour Reporting turns logged time, budgets, costs, and project data into configurable reports. Teams can group by member, project, client, or date range, then export CSV, Excel/XLSX, or PDF files for utilization review, billing checks, or management reporting.
Replace static utilization checks with scheduled capacity, time off, and planned-vs-actual reporting. Everhour Resource Planning keeps workloads realistic and improves utilization decisions.
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