willFlock finds the perfect meeting time for any group, across any mix of time zones, in three steps. No accounts, no app downloads, and no manual timezone math.
Scheduling a meeting across time zones is deceptively painful. What looks like a five-minute task turns into a thread of 40 messages spanning three days.
It starts innocently: "What time works for everyone?" Then someone says 3pm. But 3pm where? Someone converts it manually and gets it wrong because they forgot about daylight saving. A third person misreads the thread and shows up an hour late. By the time a slot is agreed on, half the group has lost the thread and needs to be re-pinged individually.
The back-and-forth compounds as group size grows. With 8 people across 4 time zones, you are no longer looking for one overlap - you are running a mental constraint-satisfaction problem across dozens of windows, in a chat thread, while people keep adding replies that push the relevant messages off screen. With 50 or 300 people, it becomes completely unmanageable without a tool.
willFlock replaces that entire process with a single link. Everyone marks when they are free in their own local timezone. You open the results page and immediately see where the group overlaps - no math, no chasing, no confusion about whose 3pm we are talking about.
Enter your event name, set the required meeting duration (e.g. 1 hour), add your expected attendees, and define the date/time windows that could potentially work. Your timezone is auto-detected. You can add up to 10 windows.
willFlock generates a unique shareable attendee link. Send it via email, Slack, WhatsApp, or any channel. Attendees don't need to create an account or download anything - they just click the link.
Open the results link at any time to see common availability across all respondents. Include or exclude individual attendees to find the best slot for any subset of the group. Results update live as more people respond.
Click the link shared by the organizer. The page automatically detects your timezone - you can change it if needed. Select your name from the list (or enter it), and optionally provide your email so you can update your response later.
Each time window is already shown in your local timezone. For each window, drag to select the times you're free, or check "No availability" if you can't make that window at all. You can add multiple slots per window.
Hit submit - your availability is saved. You can immediately click "See results" to see how your times overlap with others who have already responded.
All times are stored in UTC (Coordinated Universal Time) in our database. When you view times, willFlock converts from UTC to your local timezone using the IANA timezone database - the same standard used by operating systems worldwide.
This means daylight saving time transitions are handled automatically and correctly. A slot that spans a DST boundary (like the Sunday in March when the US clocks spring forward) will display correctly for attendees in every timezone.
Planning an in-person retreat, conference, or trip where you need to know which days people can attend (not specific times)? Enable the multi-day mode when creating your event. Attendees will select date ranges instead of times, and the results page shows which days have the most coverage.
Need to schedule individual appointments - like office hours, interviews, or one-on-one check-ins? Enable 1:1 booking mode when creating your event. Instead of asking attendees to mark availability, each time window is split into bookable slots based on your required duration. Attendees pick one slot each, and it disappears from the list the moment it is claimed - first come, first served.
As the organizer, you receive a private results link (shown once at event creation - save it). This link shows the full booking schedule with each attendee's name and email. The public results link only shows how many slots are booked, with no names visible.
Attendees can change their booking at any time using the same link - their old slot is automatically released back to the pool.
Organizing a reunion for the class of 2006 means tracking down 200+ people who now live across a dozen countries and three continents. A group chat becomes unreadable. A shared spreadsheet goes stale within hours. willFlock handles any group size: every person clicks the link, marks their availability in their own timezone, and the results page shows the date and time with the most coverage - including a breakdown of exactly who can make each slot, so you can plan around the people who matter most.
Engineering teams spread across San Francisco, London, and Singapore face a scheduling window that barely exists. willFlock makes the overlap visible instantly - and as people join or leave the team, the organizer can include or exclude individual attendees on the results page to find the best slot for any subset of the group, without recreating the event.
Planning a family holiday call, a birthday video chat, or a long-distance wedding date when family members are spread across the US, Europe, and Asia Pacific. Nobody wants to do timezone arithmetic. willFlock handles it automatically: everyone sees the proposed windows in their own local time, marks what works, and the results show the moment when the most family members can actually be online at the same time.
Professors scheduling office hours for international students, research groups coordinating across institutions in different countries, or student project teams finding time to meet - willFlock handles each scenario without requiring anyone to install anything or create an account. Share one link in the course LMS or group chat; the results are ready within minutes of the first response.
Gaming sessions, open-source project syncs, podcast recordings, book clubs, tabletop RPG campaigns - anywhere a group of people with irregular schedules and global timezones needs to find a recurring window. The 1:1 booking mode also works well for streamers or community leads who want to schedule individual catch-up calls without sharing their calendar.
Use 1:1 booking mode to offer interview slots to candidates. Each candidate picks a time that works for them, it disappears from the pool immediately, and no two candidates can claim the same slot. The private organizer link shows the full schedule. No calendar app access required, no back-and-forth emails asking "are you free Tuesday at 2?"
Ready to get started? Create your first event →
No. Attendees only need the link you share with them. They enter their name, confirm their timezone, and mark their availability. No sign-up, no password, no app download required. The organizer also does not need an account to create an event.
There is no hard cap on the number of respondents. willFlock is designed to handle large groups - dozens or even hundreds of people can submit their availability through the same attendee link. The results page updates in real time as each new response comes in.
If you list expected participants when creating the event, attendees choose their name from a dropdown, which eliminates most duplicates. If two people genuinely share a name, providing an email address lets each person update their own response later without overwriting the other's. The results page shows both entries separately.
Yes. If they provided an email when submitting, they can reopen the attendee link, enter the same name and email, and submit again. Their previous response is replaced. If they did not provide an email, they can still resubmit under the same name - the results page will show the most recent submission.
willFlock uses the browser's built-in timezone API, which returns an IANA timezone identifier such as "America/New_York" or "Asia/Kolkata". All times are stored in UTC in the database. When the page renders, it converts from UTC to the viewer's local timezone using that identifier. The attendee can also manually change their timezone using the dropdown if the auto-detected value is wrong.
Yes. Because times are stored in UTC and converted using the IANA timezone database - the same standard used by operating systems and programming languages worldwide - DST transitions are handled automatically. A window that spans the spring clock change in the US will display the correct local times for every attendee, including those in timezones that do not observe DST at all.
The attendee link (shared by the organizer) is what respondents use to mark their availability. The results link shows the computed overlap across all responses. Both links are unique to the event. The organizer can share the results link with co-organizers or the whole group so everyone can monitor responses live.
Yes. The results page includes an individual breakdown section that shows each attendee's submitted availability side by side. You can also use the include/exclude feature to move specific attendees between lists and instantly see how the overlap changes for any subset of the group.
1:1 booking mode turns your event into a slot-booking system rather than a group availability poll. Instead of everyone marking when they are free, each attendee claims one time slot. The moment a slot is claimed, it disappears from the list for everyone else - first come, first served. This is ideal for office hours, interviews, tutoring sessions, or any situation where you need to schedule individual appointments from a fixed pool of times.
Yes. When you create a 1:1 event, willFlock generates a private organizer results link that shows the full booking schedule including each person's name and email. The public results link only shows how many slots have been filled - no names or contact details are visible to attendees.
Multi-day mode is for events where attendees need to indicate which full calendar days they can attend, rather than specific time windows. This is useful for in-person retreats, conferences, workshops, or trips where the question is "which days can you make it?" rather than "what time works for you?". Attendees select date ranges and the results show which days have the most coverage across the group.
Event and submission data are automatically deleted 60 days after the last slot date has passed. Organizers can also delete their event and all associated responses at any time using the delete button on the results page. If you need earlier deletion, you can email the willFlock team. No personal data is retained after deletion.
willFlock stores only what is needed to run the service: the event configuration (name, duration, windows, timezone), and each attendee's submitted response (name, optional email, timezone, and availability windows). No tracking pixels, no behavioral profiling, and no selling of data. Analytics and advertising cookies are opt-in only, controlled by the consent banner on each page. See the Privacy Policy for full details.
Yes. Once common availability slots are computed on the results page, an "Export to calendar" button appears. This downloads a standard .ics file containing the top common slot, which can be imported directly into Google Calendar, Apple Calendar, Outlook, and any other calendar application that supports the iCalendar format.
If the submitted availability windows do not overlap at all, the results page will show zero common slots. In that case you can use the individual availability breakdown to see which specific attendees are causing the conflict, exclude them temporarily using the include/exclude feature, and find the best slot for the majority of the group. You can also go back to the organizer form and add more date/time windows to open up more possibilities.
Yes, willFlock is free to use. You do not need to pay, register, or provide a credit card to create events or submit availability. The service is supported by advertising shown on some pages.
willFlock works in any modern browser on desktop, tablet, or mobile - Chrome, Safari, Firefox, and Edge are all supported. JavaScript must be enabled. No app installation is required. The interface is responsive and designed to work on small screens, which matters for attendees opening the link on a phone.
willFlock is designed for one-time scheduling polls rather than recurring calendar management. However, you can create a new event each time you need to find a recurring meeting slot, which is useful when your group's availability changes season to season or when new people join the team. Each event is independent and generates a fresh attendee link.
A group poll (such as a chat message asking "does Tuesday work?") requires everyone to mentally convert times, reply in a thread, and someone to tally the results manually. A shared spreadsheet has no timezone awareness and quickly becomes unreadable with more than a handful of people. willFlock does the conversion, the collection, and the computation automatically. The organizer sees a ranked list of slots the moment people start responding, with no manual work required.