The time between the initiation (starting) & completion (ending) of a process/ production process.
- Lead time is examined closely in manufacturing, supply, chain management, and project management.
- Generally for apparel export order lead time is 90 to 120 days. But it may vary on the basis of quality of goods & styles.
TNA for an order (Lead time 120 days)
| Activities | Date no of day | Submission | Day left | Remarks |
| Order confirmation | 1st June | 119 | ||
| Raw material (fabric, trimming, acc) booking | 1st June | 119 | ||
| Technical workbook received | 5the June | 115 | ||
| L/C receive | 8th June | 112 | ||
| Color-wise fabric approval | 8th June | 112 | ||
| Bulk fabric test report | 10th June | 110 | ||
| Lab dip | 10th June | 110 | ||
| Size set approval | 15th June | 105 | ||
| Artwork approval | 20th June | 100 | ||
| Bulk fabric ex-mill | 30th July | 60 | ||
| Bulk fabric in-house | 04th July | 56 | ||
| Bulk fabric approval shade | 15th July | 55 | ||
| Trip test house | 6th August | 54 | ||
| PP meeting | 6th August | 48 | ||
| Cut date | 13the August | 46 | ||
| Sewing | 14th September | 45 | ||
| The apparel test result sent | 13th Sept | 25 | ||
| Booking for PSS | 22th September | 16 | ||
| Completion of production | 28th September | 10 | ||
| PSI | 29th September | 4 | ||
| Goods exactor | 02nd October | 3 | ||
| 0 | ||||
