You post the announcement: the workshop goes live at 10am PT. Within an hour, three replies ask what that means where they are. Someone in London does the math wrong and joins an hour late. Two more never convert the number at all, and they miss it entirely.
To announce a one-time go-live across time zones, state a single canonical time with its zone label, publish the local equivalents for your biggest audience regions, and give everyone a one-click way to convert it themselves.
We've launched products and run streams that half the audience joined late for, because "the number" was ambiguous. The fix is unglamorous, and it works every time.
Pick the time by where your audience actually is
The right go-live hour is the one that lands inside the working day of wherever most of your audience lives — not the one that happens to be convenient for you.
Check where your list, followers, or past registrants actually are before you pick a slot. A 10am PT start is early afternoon in the eastern US and early evening in the UK, which suits a North America plus Europe audience. That same slot is the middle of the night across most of Asia.
You cannot please every zone at once, so stop trying to split the difference until the time is mediocre for everyone. Pick the hour that serves your largest segment, then record the session for the rest. If your audience straddles the Atlantic, aim for the few hours when both sides are awake — our guide to the best meeting times for US and Europe and the wider working-hours overlap method both map that window.
State one canonical time zone, then list the local equivalents
Pick one zone as the source of truth, label it every single time you write the number, then hand readers a short conversion table so they never have to guess.
"10am" is a trap. "10am PT" is a fact. The three letters are the whole job — they turn a number that needs a follow-up question into one that doesn't. Below is the kind of mini-table you can paste straight into a launch email or event page.
| Time zone | Local time when the drop is 10:00 AM PT |
|---|---|
| Pacific (PT) | 10:00 AM |
| Central (CT) | 12:00 PM |
| Eastern (ET) | 1:00 PM |
| London (GMT/BST) | 6:00 PM |
Equivalents checked July 2026. The three US zones shift together, so 10am PT is 1pm ET and 12pm CT all year. The London row is the one to watch: it reads 6:00 PM in both standard seasons, but during the two-to-four-week gaps when US and UK clocks change on different dates, it can slip to 5:00 PM. Confirm the exact cross-zone times before you publish, and see our world clock and time-zone guide for why those desync windows exist.
Nobody in your audience will do the time-zone math for you — the ambiguity you leave in the invite gets paid back in empty seats.
Convert your go-live time to any attendee's zone in seconds
When a reader thinks "the drop is 10am PT — what's that for me?", the fastest honest answer is a converter that reads their device zone and does it instantly. Drop your canonical time into the calculator below and it shows the result in the attendee's own zone, with the day of the week and any date rollover handled.
Set the launch date and the go-live time, and the "in your zone" line tells each visitor exactly when to be there — no mental arithmetic, no AM/PM slips. The shareable link is the useful part for a launch: paste it in the announcement so people click once instead of Googling "10am PT in my time." For the arithmetic behind spans like "24 hours before doors open," our hours-before-and-after guide covers the day-rollover traps.
Build a countdown and a reminder schedule around the launch
Announcing the time once is not enough, because people register on Monday and forget by Thursday. A visible countdown plus a short reminder sequence is what turns sign-ups into attendees.
Put a live countdown on the event page so the number of days, hours, and minutes is doing the nudging for you. Our countdown calculator guide shows how to set one to a fixed launch moment. Then plan the reminders backward from the go-live time, not forward from today.
The T-minus reminders that get people to show up
The three reminders that move the needle are a day out, an hour out, and ten minutes out — each written from the attendee's local clock, not yours.
| Reminder | When it sends | Why it works |
|---|---|---|
| T-24h | 24 hours before go-live | Enough notice to clear the calendar or reschedule |
| T-1h | 1 hour before go-live | Catches people at their desk the same day |
| T-10m | 10 minutes before go-live | The "we're starting now" tap that fills the room |
Work out each send time by taking your canonical go-live moment and counting Before it — 24 hours, then 1 hour, then 10 minutes. A time calculator does this without the midnight-rollover mistakes that make a "one hour before" reminder land on the wrong day.
Automate the reminders so you're not sending them by hand
Sending three timed reminders by hand across a launch is how one of them gets forgotten. If you want the sequence to fire on its own, an automation platform can watch a registration list and send each message at the right offset from your go-live time.
Make is one genuine option here: it can trigger a scheduled workflow, pull registrants from a form or sheet, and send the T-24h, T-1h, and T-10m messages without you touching them on launch day. It is honestly not the simplest tool to learn — the visual builder rewards a bit of patience, and the free tier caps how many operations you get each month. For a single launch, a plain calendar reminder to send each email yourself is often enough; reach for automation when you run these often.
Tools that show attendees their local time automatically
Some scheduling tools remove the conversion step entirely by detecting the visitor's zone and showing the time in their local clock. That is the cleanest experience when people register or book a slot.
Calendly auto-detects an invitee's time zone and displays available times in it, so a registrant in Berlin sees Berlin time without being told to convert anything. The limit is that this only helps at the booking or registration step — for a broadcast post, tweet, or email blast, no tool reads the reader's zone for you. There you still need the canonical time, the equivalents table, and a converter link. Use zone-aware scheduling where people sign up, and the manual pattern everywhere else.
A pre-launch time checklist
Run this sequence before you publish any go-live announcement, and the "what time is that for me?" replies mostly disappear.
- Lock the canonical time zone. Choose one zone as the source of truth and commit to writing the number with its label every time.
- Publish the local equivalents. Paste a short table for your top two or three audience regions, so most readers never have to convert anything.
- Add a converter link. Include a one-click time converter for everyone outside those regions.
- Schedule the T-minus reminders. Set T-24h, T-1h, and T-10m by counting backward from the go-live moment.
- Confirm the DST status. Check whether any region is mid-changeover during your launch week, since that shifts the equivalents by an hour.
- Add a calendar file. Attach an .ics or calendar link so the event lands in each attendee's calendar in their own zone automatically.
Keeping the whole team on the same schedule during a launch is its own discipline — our remote collaboration guide covers the coordination side once the public time is nailed down.
Frequently Asked Questions
What is the best time to host a webinar in different time zones?
Pick the hour that falls inside the working day of your largest audience region, then record the session for everyone the live time doesn't suit.
How do I convert a webinar time for attendees?
State one canonical time with its zone label, then let each attendee drop it into a time converter that shows the result in their own zone.
What time is 10am PT in EST?
10:00 AM Pacific is 1:00 PM Eastern — the US coasts stay three hours apart all year.
How do you announce an event time across time zones?
Write the time in one labelled zone every time, list the local equivalents for your top regions, and include a one-click converter link.
What's the best day and time to launch a product?
There's no universal slot — anchor to your audience's mid-week working hours and confirm the exact cross-zone equivalents with a converter before you publish.
