What to check before an international delivery call

Scheduling a call about an international delivery can seem simple until the time lands outside the other person’s workday, or on a different calendar date. That can delay a handoff, a customs question, or an update about a delivery window.

Before you send an invitation, check the local time and date for everyone involved, then confirm the delivery location’s hours and any deadline. The World Clock can help you compare local times at a glance.

Check the call time before you send it

1. Open the World Clock and compare the local time in your location with the local time where the recipient will take the call. Use the recipient’s city, not just their country.
2. Choose a specific date and time in your own location. Write both clearly, for example, “Tuesday, 10:00 a.m. in Seattle, Washington.” Avoid phrases such as “tomorrow morning” or “end of day,” which can mean different things across time zones.
3. Check what that moment means at the other end. Include the recipient’s local date as well as their local time, especially if the call is near midnight in either location.
4. Check the time-zone difference for the date of the call. Daylight saving changes do not happen on the same dates everywhere, so a difference that is correct this week may be off by an hour on a future date.
5. Confirm the delivery details separately. Ask which local time zone applies to the delivery address, when the receiving office or warehouse is open, and whether the delivery has a cutoff time.

For a call scheduled several days or weeks ahead, use a calendar invitation that includes both locations’ time zones. The World Clock is useful for comparing current local times, but do not assume a current time difference will stay the same on a future date.

What the timing check tells you

Both people are within normal working hours

The proposed time is a reasonable starting point, but check the other person’s own availability. A warehouse may open earlier than the supplier’s office, or a driver may be on a route while the customer service team is available. Confirm who needs to join and whether they can answer delivery questions at that time.

The other person’s local time is very early or late

Choose a different time if possible. If the call has to happen outside ordinary office hours, ask the recipient before sending the invitation. Do not assume that a delivery deadline makes someone available after hours.

The local date changes between locations

This is normal when the locations are far apart, but it is an easy source of missed calls. Put the date in each person’s local time zone in your message. For example, a call late in the evening in one city might take place the following morning in the other.

The time difference changes near daylight saving dates

Check the exact date rather than reusing the offset from an earlier call. New York and London are usually five hours apart, but the difference is four hours for short periods around their separate daylight saving transitions. Recurring calls scheduled during those weeks can shift unexpectedly for one participant.

The delivery deadline uses a different location’s time

A carrier, warehouse, or online tracking page may use the destination’s local time rather than your own. Confirm the time zone for any cutoff, appointment window, or promised delivery date. If the deadline is unclear, ask the carrier or receiving location to state the local time and place explicitly.

How to avoid a scheduling mistake

1. State the city and date. In the invitation, include the time zone by naming a city, such as “10:00 a.m. Seattle time,” rather than relying on an abbreviation such as CST. Abbreviations can refer to different places and may not show whether daylight saving time applies.
2. Ask the recipient to confirm. Send the proposed time in both locations, then ask them to reply with the time they see locally. This catches a mistaken city, date, or offset before the call.
3. Check the calendar invitation. After creating it, verify that the calendar shows the intended local time for both participants. If you change the call time, check the date and time again rather than assuming the invitation adjusted correctly.
4. Check the receiving location’s hours. A delivery appointment may depend on a loading dock, reception desk, or customs office. Confirm its opening hours and local holidays with the person responsible for receiving the shipment.
5. Recheck recurring calls. If the call repeats across a daylight saving change, inspect the next occurrence in both locations. Decide whether it should remain at a fixed local time for one person or a fixed shared time for both.

If you are coordinating with multiple cities, share one proposed time in each participant’s local time rather than making everyone calculate from a single location. For more on why local dates can differ, see why a meeting time changes in one city but not another.

Why time-zone names matter

A UTC offset is the number of hours a location is ahead of or behind Coordinated Universal Time. Some offsets change during the year when a location observes daylight saving time. A city name is often clearer than a short abbreviation because it identifies the location whose rules should apply.

Countries can have several time zones, and some regions do not change clocks when others do. A recipient traveling between cities may also be using a different local time than their usual office. Ask which city they will be in for the call, then verify the delivery address’s time separately.

Before you send the invitation, make sure the message states the date, the time, and the relevant city for each location.