The four calendars

Fifteen cultural institutions whose public filings we examined close their fiscal years in five different months. The Metropolitan Museum of Art, MoMA and the Seattle Art Museum close theirs in June. Mount Vernon, Crystal Bridges and the Corning Museum of Glass close in December. Longwood Gardens and Desert Botanical Garden close in September, the Oregon Museum of Science and Industry in May, and the Portland Museum of Art in Maine in January. June is the most common month, at six of the fifteen, and December is next at five. Neither is a majority. One institution, Brookgreen Gardens, moved its year-end from December to June between 2021 and 2022.

When two people from different institutions say “next year,” they may mean periods that barely overlap. Inside a single institution the problem is larger, because the fiscal year is only one of four clocks, and none of them was set with the others in mind.

There is also more to coordinate than there used to be. Giving USA 2026, from the Indiana University Lilly Family School of Philanthropy, put giving to arts, culture and humanities at $27.31 billion in 2025, up 7.5 percent (4.7 percent after inflation), ahead of the 5.7 percent growth in giving overall. That growth is uneven; the American Alliance of Museums found a quarter of museums reporting a weaker bottom line in 2024 than in 2019. Where money is growing, though, it brings more galas, campaigns and gifts onto the same four calendars.

Why do merchandise decisions always feel rushed?

Because four calendars run inside every cultural institution and they rarely line up: the exhibition schedule, the fiscal year, the gala and campaign calendar, and the retail season. Each makes sense on its own. Most merchandise problems are collisions between them, and the rush is what a collision feels like from the inside.

The exhibition schedule is set years ahead and occasionally changes late, when a loan falls through or an opening moves. The fiscal year decides when money exists, which is not always when it is needed. The gala and campaign calendar sets dates that usually hold, though not always: a gala can move for a venue or an honoree, and a campaign’s public launch can shift with a lead gift. The retail season follows visitors, which means it follows school holidays, tourism and weather more than any internal plan.

Each calendar has an owner, and each owner is doing their job. The store manager knows the retail season, development knows the gala date, and curatorial knows the opening. The trouble starts when a merchandise decision depends on two of them at once, which is most of the time.

When should we plan merchandise for the year?

Start from the date that genuinely can’t move, then work backward across all four calendars, marking where each one touches the plan. Treat dates that usually hold, like a gala, as firm but not guaranteed, and ask what happens if one shifts. The earliest point on that map is when planning should start.

It’s tempting to answer this with a number of months. That number would be wrong for many institutions, because the right starting point depends on where the four calendars sit relative to each other. An exhibition opening in the autumn, at an institution whose fiscal year starts in July, with a gala in October and the holiday retail season close behind, has a planning map that looks nothing like the same exhibition’s at an institution on a calendar year.

Production time is part of the same picture. Depending on the item, how it is customized and the logistics involved, it can take 24 days or more, and some items can be turned around in as little as 24 hours. That spread is the strongest reason to start the conversation early: until the item is chosen, nobody can say which end of it you are on.

Marking the touch points is the useful part. Which fiscal year does the budget for this item come from? When does the exhibition’s content lock, so the design can be finished? Is there a gala or campaign moment it has to arrive before, and what happens if that moment moves? When does the store need it on the floor to catch the season? Each answer is a date, and each date has approvals behind it, as we wrote about in why the date you were given is not the date. The earliest of those dates is where the work begins.

How do we plan store buying around our exhibition schedule?

Tie exhibition merchandise to the exhibition’s decisions as much as to its opening date. Content, imagery and rights are usually settled in stages, and each stage unlocks part of the design. Plan so that nothing depends on the last stage unless it has to, and keep a version that still works if the opening moves.

An opening that moves late is one of the harder collisions, because the retail season doesn’t move with it. A show meant to open ahead of the holidays that now opens after them changes what the store needs, how much, and when. The merchandise planned for it may still be right, but the quantity and timing probably aren’t.

The safer approach is to separate what depends on the exhibition from what depends on the season. Objects built around a specific loaned work are tied to that loan. Objects that draw on the institution’s own collection or identity can carry the season even if the exhibition slips, and they can keep selling after it closes.

How do the store and the development office plan together?

By putting their calendars side by side, at least once a year. They often need related things at different moments: a member premium, a gala gift, a store item from the same exhibition. The institutions that handle merchandise well have somebody looking at all four calendars at once, and that is usually nobody’s job.

In our experience, budget has little to do with it. Somewhere in the building, someone looks across all four calendars and notices where they will collide before they do. Sometimes it is a store manager, sometimes a development director, sometimes a deputy director with a wide view. It is rarely written into anyone’s role.

It doesn’t need to be a new position. It needs a single page: the four calendars for the coming year on one timeline, with the fixed dates marked, the dates that usually hold marked differently, and the places where they touch circled. The store and development each bring their dates, curatorial brings the exhibition schedule, and finance brings the fiscal year. An hour with that page will surface problems while they are still cheap to solve.

Where the collisions fall depends on the institution. For museums and galleries, the exhibition schedule is often the calendar that moves. A botanical garden‘s retail season follows what’s in bloom as much as the holidays, and a garden with indoor spaces, a historic house or a conservatory, may find its busiest shop weeks are the ones when weather drives visitors inside, in winter and in the worst of the summer heat. For performing arts organizations, the season itself is the variable: a repertory company, a tight subscription season and a one-off production each put their dates in different places, and a company that rents its venue has less say over those dates than one that owns it. The page works the same way for all of them.

The calendars will keep running on their own schedules. What changes the year is someone seeing them together.

Sources

• Addiss Enterprises analysis of public Form 990 filings for fifteen institutions, from ProPublica Nonprofit Explorer
• Giving USA 2026, IU Lilly Family School of Philanthropy
• AAM, 2025 Annual National Snapshot of United States Museums