4-5-4 Retail Calendar

A 4-5-4 retail calendar groups each quarter into four weeks, five weeks, then four weeks. The long period sits in the middle of the quarter. US retail planning often treats 4-5-4 as the default NRF-style pattern. This page builds that middle-heavy quarter from the Sunday nearest February 1. It is planning-grade only, not a licensed NRF calendar file.

The middle period is the long one

Period 2 of each quarter has five weeks; periods 1 and 3 have four. Mid-quarter promotions, mid-quarter inventory snapshots, and “period 2” dashboards therefore cover more calendar days than the opening or closing period. Analysts who grew up on 4-4-5 (long period last) will mis-time packouts if they keep assuming the extra week is at quarter close.

Compare with 4-4-5 calendar when a vendor still uses a trailing five-week period, and with 5-4-4 calendar when the extra week is front-loaded. The year start can match while weekly buckets do not. Label workbooks with the three-digit pattern, not only “retail calendar.”

Sunday nearest February 1, same family start

Like the other two NRF-style tools on this site, weeks begin on the Sunday closest to February 1. That is a merchandising year, not a civil year and not a federal fiscal year starting October 1. Civil February 1 may be a Wednesday; the retail year still opens on a nearby Sunday.

ISO week 1 is defined by January 4 and Monday starts. 4-5-4 week 1 is a Sunday near February. Importing ISO week numbers into a 4-5-4 column is a category error. Use week number calendar only for ISO labels on civil months.

How to read a 4-5-4 year

Enter the retail year and calculate. Each quarter shows 4, 5, then 4. Period 2 contains five Sundays, which matters for Sunday circulars and weekend traffic models. Holiday civil dates still fall on their civil days; a five-week period 2 that contains Easter (when Easter is in that window) does not move Easter.

Overlay 2026 holidays on civil dates when 2026 months appear inside retail weeks. Observed federal Fridays affect store hours even though the retail week is Sunday–Saturday.

Worked examples

A national chain’s finance calendar is 4-5-4. Regional managers generate the year here to see which civil dates sit in period 2 of Q2, then schedule a five-week promo that should not be compared to a four-week period 1 without weekly averaging.

A vendor agreement says “NRF 4-5-4 weeks.” The merchant uses this page for a draft mapping, then replaces dates with the licensed NRF table before the contract PDF is signed. Draft versus licensed is an explicit two-step.

53-week years and period 3

In 53-week retail years, extra days must live somewhere. Many 4-5-4 implementations still add the 53rd week at year end rather than expanding every period 2. Do not assume this planning view matches your ERP’s 53-week posting rule. Ask which period received the extra week last time it happened.

Leap day is a civil date inside a Sunday week. It does not create a 53-week year by itself. 53-week years come from the Sunday-to-Sunday year length relative to the next February-adjacent Sunday.

Why 4-5-4 became the common teaching pattern

Placing five weeks in the middle of the quarter balances the extra week away from both the quarter open and the quarter close. Some merchandisers prefer that for comparable store reporting. Others still want the extra week at close (4-4-5) to absorb holiday weeks at quarter end. The choice is accounting policy, not astronomy.

If your company policy PDF says 4-5-4, stay on this URL. Generating 4-4-5 “because the start Sunday is the same” will still mis-bucket weeks 5–9 of each quarter.

Limits

No SKU-level seasonality, no weather, no labor hours. No official NRF trademarked week IDs. For civil month posters use yearly or monthly calendars. For federal FY months use the fiscal calendar generator.

Print the period table for 2026 planning meetings and write the pattern name in the header so a 4-4-5 slide does not get stapled behind it.

Mid-quarter promotions

Period 2’s five weeks are the natural home for mid-quarter promotions under 4-5-4. Moving a five-week promo to period 3 would squeeze it into four weeks. Creative teams should receive the Sunday start of period 2, not a civil month name like May, because period 2 can straddle two civil months.

Comparable-store reports that mix a 4-5-4 period 2 with a 4-4-5 period 3 from a vendor are mixing two different five-week slots. Restate both to weekly averages and also name the pattern. 2026 planning memos should freeze 4-5-4 in the header if that is the ledger.

ERP period numbers

Some ERPs number retail periods 1 through 12. Periods 2, 5, 8, and 11 are the five-week periods in 4-5-4, the middle of each quarter. In 4-4-5 those five-week numbers would be 3, 6, 9, and 12. Mapping spreadsheets must not assume period 3 is always long.