Scheduling an email lets you write it when it suits you and deliver it when it suits the reader. In Gmail, click the arrow beside Send and choose Schedule send. In Outlook, use Schedule send (or Delay Delivery in classic desktop Outlook). Slack has the same option beside its send button. It is most useful for two situations Japan-based businesses meet constantly: managers writing late at night without pulling staff into after-hours work, and teams in Tokyo writing to contacts in time zones 8 to 17 hours away.

Why schedule emails instead of sending them now?

A late message becomes someone else’s evening

When a manager sends email at 23:00, staff notice. Even without a stated expectation, many will read it and some will reply, because in a lot of Japanese workplaces being responsive to a senior person is how diligence is shown. Over time the team learns that the working day has no clear end. Long hours and blurred boundaries are an old problem in Japan; I wrote about the leadership side in long hours as a poor substitute for leadership.

Scheduling separates writing from sending. You can clear your inbox at night if that is when you think best, and the messages arrive at 9:00 the next working day. Nothing about the content changes, but the signal does.

Timing affects how a message is read

An email that lands at 9:00 on a Tuesday reads as planned and routine. The same email at 23:45 on a Saturday can read as urgent, anxious or careless of the reader’s weekend, even when it is none of those. For client communication, predictable timing is part of looking organized.

International contacts deserve their morning too

Japan is on JST (UTC+9) all year, with no daylight saving time. That means the gap to your overseas contacts changes twice a year while your clock does not.

  • New York: 10:00 in Tokyo is 21:00 the previous evening in summer and 20:00 in winter.
  • London: 10:00 in Tokyo is 02:00 in summer and 01:00 in winter.
  • Singapore and Hong Kong: one hour behind, so no scheduling needed for most messages.

If you write to New York contacts during your morning, scheduling delivery for about 22:00 or 23:00 Tokyo time puts the email at the top of their inbox when they start work. Most tools let you pick the send time in your own time zone, so you do the conversion once.

How do you schedule an email in Gmail?

  1. Write the email as normal.
  2. Click the small arrow beside the blue Send button and choose Schedule send.
  3. Pick a suggested time or choose Pick date & time.
  4. Scheduled emails appear in the Scheduled folder in the left menu, where you can edit or cancel them before they go.

On the Gmail mobile app, the option is in the three-dot menu at the top of the compose screen. Scheduling works the same in personal Gmail and Google Workspace accounts. If your company is moving to Workspace, the Google Workspace adoption guide covers mail and calendar setup.

Video: Schedule send in Gmail from Google Workspace.

How do you schedule an email in Outlook?

New Outlook and Outlook on the web. Click the arrow beside Send, choose Schedule send, and pick a time. The message waits in Drafts until it goes. In the web version, Outlook sends it from the server, so your computer can be off.

Classic Outlook for Windows. Open Options, then Delay Delivery, and set “Do not deliver before”. In classic Outlook the message sits in the Outbox, and Outlook generally needs to be running to send it at the scheduled time. This catches people out.

Outlook on Mac and mobile. Both offer a Schedule send option from the send button menu in current versions.

Can you schedule messages in Slack, Chatwork or Teams?

Slack supports scheduled messages: click the arrow beside the send button and pick a time. Teams also lets you schedule a chat message by right-clicking or long-pressing the send button. Check what your own chat tool offers before assuming; features differ by product and plan. In chat tools, the more useful habit is often notification settings. Encourage staff to set working hours and do-not-disturb so messages wait for them without anyone having to schedule anything. I cover how to divide work between chat tools and email in choosing between LINE, Chatwork, Slack and Teams.

When should you not schedule an email?

Scheduling is for messages that can wait. Do not schedule anything genuinely urgent, such as a problem with a customer order, a security issue or a change to tomorrow morning’s meeting. Those should go now, preferably through the channel your team has agreed for urgent matters, often a phone call.

Be careful with replies. If a customer writes at 21:00 and you schedule your reply for 9:00, that is usually fine. If they are waiting on a decision to act tonight, it is not.

And check scheduled mail before it leaves. Circumstances change overnight, and a scheduled message that answers a question already resolved in a meeting looks odd.

How can managers set team boundaries around email?

A policy helps more than individual habits. A short written rule might say:

  • Messages sent outside working hours do not require a response until the next working day.
  • Managers schedule non-urgent email for working hours.
  • Urgent issues go by phone, not email or chat.
  • Out-of-office replies state when you will respond and who to contact instead.

Japan has no general legal “right to disconnect”, but employers are asked to make efforts toward rest intervals between shifts (勤務間インターバル), and the WHO classifies burn-out as an occupational phenomenon. A clear rule costs nothing and makes the expectation visible to new staff and overseas colleagues alike.

Small habits, clearer working rules

Email scheduling is a small feature. Its value is that it lets people work flexibly without spreading that flexibility onto everyone else. Combined with agreed response times and a clear place for urgent issues, it makes a team calmer and its communication more predictable.

If your team’s email, chat and calendar habits need a reset, I can help set up the tools and write the working rules with your team. For ongoing help as the team grows, see Ongoing Stewardship.

Further reading: booking pages in Japan: Calendly, TimeRex or Google Calendar · client communication rules that keep work moving · choosing between LINE, Chatwork, Slack and Teams