How many time slots should you offer for a meeting? (and how to pick them)
Three to six options across at least two days, in the other person's timezone, sized to the meeting — the etiquette of offering times, and why 'whenever works' backfires.
On this page
"I'm flexible, whenever works for you" feels polite and is the slowest possible way to schedule anything: it hands the whole search to the other person. Offering a short, specific list is faster for both of you and reads as considerate rather than vague.
How many
Three to six. Fewer than three and a single conflict sends you back a round; more than six and the list becomes work to read. For a group, offer the slots where everyone is free and trim to the best six.
Spread them
Across at least two different days, and ideally mixing mornings and afternoons. A list of five slots all on Thursday afternoon is really one option.
Size them to the meeting
Offer blocks at least as long as the meeting. If you need 45 minutes, don't list 30-minute gaps. Set the minimum slot length in your tool to match the meeting, and it stops showing the gaps that don't fit.
Timezone and format
One timezone line at the top, in the recipient's zone if you know it. Day headings, then times under each day. This format scans in two seconds on a phone, which is where most replies happen:
All times in US/Eastern • Today 07/08 03:30 PM - 04:00 PM 05:00 PM - 05:30 PM • Thursday 07/09 09:30 AM - 10:30 AM 12:00 PM - 01:00 PM 02:30 PM - 03:00 PM
OpenSlot produces exactly this from your Outlook free/busy — pick the people, the window, the timezone and the shortest slot to show — so offering the right number of good options is a click, not a calendar scan.
Why three is the floor
The number is really about round-trips, not politeness. Offer one time and you have not made an offer, you have made a request. Offer two and a single conflict — one meeting you could not see, one school run — takes you back to the beginning with nothing gained. Three is the smallest list that survives one collision, which is the failure the exchange is most likely to hit.
Six is the ceiling for a different reason: past that, the list stops being a choice and becomes a task. A reader scanning eight or ten near-identical lines on a phone has to hold them all in mind to compare, and the common outcome is not a careful decision but a deferred one — the reply that starts "let me check and get back to you", which is the round-trip you were trying to avoid.
Groups change the arithmetic
When the times have to suit several people on your side, the supply of genuinely free slots shrinks fast, and the instinct is to offer every one you find. Resist it. Send the best five or six and hold the rest back — an intersection across four calendars regenerates in seconds, so the reserve costs you nothing and a wall of twenty options costs you the reply.
Hold something in reserve deliberately, too. If you offer every slot that exists and they take none, your next message has nothing new in it. Keeping two back means the second round is another offer rather than an apology.
Two rules the tool can enforce for you
Sizing is the one people get wrong most often, and it has a wrinkle: a block has to end inside working hours, not merely start inside them. With a 9:00–17:00 day and a 60-minute meeting, 16:30 is not a real option even though the calendar shows it free. Setting the minimum slot length to the meeting length makes that arithmetic automatic rather than something you check by eye.
Spreading is the other. Slots are only distinct if the reasons they might fail are distinct — five options in one afternoon all die to the same overrunning meeting. Across two days, mixing a morning and an afternoon, you are offering genuinely independent chances, which is what makes three well-chosen times beat eight clustered ones.
Common questions
How many meeting times should I offer?
Three to six. Three is the smallest list that survives a single collision, which is the failure the exchange is most likely to hit. Past six the list becomes work to compare, and the common outcome is a deferred reply rather than a decision.
Is it rude to offer only two times?
Not rude, but fragile. One meeting you could not see, or one school run, and you are back at the start having spent a round-trip. Two options also make it obvious you have not left much room, which invites a counter-proposal rather than an acceptance.
Should all the slots be on the same day?
No. Slots are only really distinct if the reasons they might fail are distinct — five options in one afternoon all die to the same overrunning meeting. Spread them over at least two days, mixing a morning with an afternoon, and three well-chosen times beat eight clustered ones.
How long should each offered slot be?
At least as long as the meeting. If you need 45 minutes, listing 30-minute gaps offers times that cannot hold it. Setting a minimum slot length to the meeting length makes that automatic, including the wrinkle that a block must end inside working hours rather than just start inside them.
Should I offer every free slot I can find?
No — send the best five or six and keep the rest back. If you offer everything and they take none, your next message has nothing new in it. Holding two in reserve means the second round is another offer rather than an apology.
OpenSlot
Skip the retyping
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