# When2Sync - Full Content Reference for LLM Ingestion Source: https://when2sync.com/llms-full.txt Generated: 2026-06-02 --- ## About When2Sync When2Sync is a free, browser-based group scheduling tool. It requires no account, no sign-up, and no email address from any participant - not even the event organiser. It is designed for small to medium-sized groups - teams, clubs, and families - who need to find a common meeting time across multiple dates and, optionally, multiple timezones. When2Sync was built by L&L Interactive. Website: https://lnlinteractive.com --- ## Core Product: Group Availability Scheduling ### What it does When2Sync lets one person create an availability poll covering a set of candidate dates. Anyone with the link can participate instantly by marking their free time slots on a calendar grid. The tool then overlays all responses and highlights the slots where the most people are available. ### How it works - step by step 1. The organiser visits When2Sync and fills in: - Event name (e.g. "Team lunch", "Book club", "Project kickoff") - Their own name - An optional password (to protect their entry from being edited by others later) - A set of candidate dates selected on a month calendar - Their timezone (used as the reference timezone for the time grid) 2. The event is created and a unique shareable URL is generated. 3. The organiser shares the link with all participants - via any channel (email, Slack, WhatsApp, etc.). 4. Each participant: - Visits the link (no app or account needed) - Enters their name and optionally sets a password - Clicks or drags on the time grid to mark the hours they are free - Saves their availability 5. All participants - and the organiser - can switch to the "Group Availability" view at any time to see a colour-coded heatmap: slots where more people are free appear darker/more saturated. 6. The organiser identifies the best slot from the visual overlap and can confirm a meeting time. ### Features - scheduling tool - **Free**: No payment, no subscription, no limits on events or participants - **No account required**: For the organiser and for all participants - **No app required**: Works in any modern web browser on any device - **Password protection**: Each participant can optionally set a password; only they can edit their availability later (useful when accessing from a different device) - **Shareable event links**: The URL is the only thing needed to join and participate - **Timezone-aware**: The grid is anchored to the organiser's selected timezone; each participant's timezone is also recorded - **Real-time group overlap view**: The Group Availability heatmap is available immediately and updates as participants save --- ## Timezone Converter When2Sync includes a built-in Timezone Converter available at /convert. It is a standalone tool - no event or scheduling needed. ### What it does Lets users compare the current time (or any chosen time on any date) across multiple cities and timezones simultaneously. ### How it works 1. The user searches for a city, country, timezone abbreviation, or IANA identifier (e.g. "New York", "EDT", "Australia/Sydney", "IST", "Eastern Time") 2. A row is added showing that location's local time, timezone abbreviation, and UTC offset 3. Up to 5 locations can be compared simultaneously 4. A time slider at the bottom scrubs through all 96 fifteen-minute intervals of a 24-hour period 5. All location rows update in real time as the slider moves 6. A date picker lets the user set any reference date - DST offsets recalculate automatically ### Features - timezone converter - **DST-aware**: Always shows the correct abbreviation for the selected date - EDT in summer and EST in winter, AEDT in Australian summer and AEST in winter; never shows a fixed offset - **Date picker**: Change the reference date to any past or future date; DST handling is exact for every IANA timezone - **Live mode**: Locks to the current moment and updates every 30 seconds; LIVE badge visible on the time rail - **Timezone search**: Accepts city names, country names, IANA identifiers, and abbreviations - **Timezone concept search**: Searching "ET" or "Eastern Time" or "EDT" returns "Eastern Time" - users who think in timezone concepts (not cities) are supported - **Shareable links**: "Copy link" encodes all locations and the current time point into a URL - **Keyboard accessible**: Arrow keys step ±15 minutes, Shift+Arrow steps ±1 hour, Home/End jump to day boundaries - **Callability indicators**: Each row shows whether the local time is within business hours, after hours, or overnight - **No account or sign-up required** ### Supported timezones All IANA timezone identifiers are supported (approximately 600 zones). The search UI includes curated entries for approximately 170 major cities, plus virtual timezone concept entries for common abbreviation searches (ET, CT, MT, PT, GMT, UTC, IST, JST, AEST, AEDT, CET, BST, NZST, and more). --- ## Frequently Asked Questions **What is When2Sync?** When2Sync is a free, no-account-required group scheduling tool. You create an event, share the link with your group, and everyone marks the times they are available. When2Sync then shows you the time slots that work for the most people. **How does When2Sync work?** Create an event by entering a name, selecting the dates you want to compare, and choosing your timezone. Share the generated link with your group. Each person enters their name and clicks or drags on the calendar grid to highlight the times they are free. The Group Availability view colour-codes each slot by how many people are available, making the best meeting time immediately obvious. **Do I need to create an account to use When2Sync?** No. When2Sync requires no sign-up, no email address, and no account. Just create an event and share the link - anyone with the link can participate instantly. **Is When2Sync free?** Yes. When2Sync is completely free to use with no limits on the number of events or participants. **How many people can join a When2Sync event?** There is no hard limit on participants. When2Sync is designed for small to medium-sized groups such as teams, clubs, and families. **Can I protect my availability with a password?** Yes. When adding your availability you can optionally set a password. Anyone who wants to edit your entry later will need to enter that password first. **What is the Timezone Converter?** The Timezone Converter is a built-in tool that lets you compare times across multiple cities or timezones simultaneously. Use the slider to scrub through the day and see the equivalent local time for each location in real time. It is DST-aware - it shows EDT in summer and EST in winter, AEDT in Australian summer and AEST in winter, automatically. **Who built When2Sync?** When2Sync was built by the L&L Interactive team. Website: https://lnlinteractive.com **How does When2Sync compare to When2Meet?** When2Sync is a modern When2Meet alternative built on the same core idea - share a link, everyone marks when they're free, and you see the best overlap instantly. When2Sync adds a cleaner mobile-friendly interface, optional per-participant password protection, timezone-aware scheduling, and a built-in DST-aware Timezone Converter. Both are completely free and require no account from anyone. **Is When2Sync a free Doodle alternative?** Yes. When2Sync is a fully free Doodle alternative with no ads, no account required for anyone including the organiser, and no paid tier. Doodle's free plan is ad-supported and restricts some features. When2Sync has no limits on events or participants, no advertising, and is free for everyone. **What scheduling tools is When2Sync similar to?** When2Sync is in the same category as When2Meet, Doodle, LettuceMeet, and NeedToMeet - free group scheduling tools where participants mark availability on a time grid and the best overlap is shown visually. When2Sync stands out by requiring no account from anyone, and by including a standalone DST-aware timezone converter ideal for international teams. --- ## Use Cases - Scheduling recurring team meetings across different timezones - Organising club or community events where members have varied schedules - Coordinating family gatherings across time differences - Planning remote team socials, retrospectives, or standups - Checking what time a meeting is in multiple cities at once before sending an invite - Verifying daylight saving time transitions before scheduling international calls - Finding availability overlap for freelancers and clients in different countries --- ## Comparison to Similar Tools When2Sync is in the same category as: - **When2Meet** (the original grid-based availability poll) - **Doodle** (date-only or time-slot polls; free tier has ads) - **LettuceMeet** (modern When2Meet alternative) - **NeedToMeet** (free group scheduling) When2Sync differentiates by: requiring no account from anyone (including the organiser), including a standalone DST-aware timezone converter, and offering a clean modern interface with no advertisements. --- ## Technical Notes - Platform: Web browser - no app, no download required - Compatibility: Any modern browser (Chrome, Firefox, Safari, Edge) on desktop or mobile - Cost: Free, no paid tiers - Authentication: None required - Backend: PHP 8.1, SQLite database - Client-side: Vanilla JavaScript, no frameworks - Privacy: No email addresses or personal data collected from participants; event data stored server-side --- ## Structured Data (schema.org) Key schema.org entities embedded in page `` elements for structured-answer engines (Google SGE, Bing Copilot, etc.): **Homepage (`/`) - WebSite + WebApplication:** - `applicationCategory`: BusinessApplication - `offers.price`: 0 (free) - `featureList`: No account required; group availability polling; interactive drag-to-select grid; real-time group overlap heatmap; timezone-aware scheduling; optional password protection per participant; shareable event links; built-in DST-aware timezone converter - `publisher`: L&L Interactive (https://lnlinteractive.com) **Timezone Converter (`/convert`) - WebApplication:** - `applicationCategory`: UtilitiesApplication - `offers.price`: 0 (free) - `featureList`: Compare up to 5 timezones simultaneously; DST-aware abbreviations; interactive 15-minute slider; date picker with correct DST recalculation; live mode; shareable links; supports all IANA timezones and common abbreviations (ET, PT, GMT, IST, JST, AEST, CET, BST) - `isPartOf`: When2Sync WebSite **About page (`/about`) - Organization + FAQPage:** - `Organization`: L&L Interactive, https://lnlinteractive.com - `FAQPage`: 11 questions covering product overview, features, password protection, timezone converter, account requirements, pricing, participant limits, and comparisons to When2Meet, Doodle, LettuceMeet, and NeedToMeet --- ## Site Map - `/` - Home: event creation form and site description - `/convert` - Timezone Converter - `/about` - About page with FAQ and publisher information - `/privacy` - Privacy Policy - `/llms.txt` - LLM-friendly site index (llms.txt standard) - `/llms-full.txt` - This document: full content for LLM ingestion - `/sitemap.xml` - XML sitemap for search engine crawlers - `/robots.txt` - Crawler instructions --- ## Publisher **L&L Interactive** Website: https://lnlinteractive.com Creator and operator of When2Sync.