Copy the events that belong on the other calendar

You have two calendars, and some events belong on both. The client call on your work calendar needs to block your personal calendar too, or your partner books dinner on top of it. Google Calendar has no setting that copies events for you. Most people copy them by hand, or build a Zapier or IFTTT recipe that copies every new event, or only the ones with a keyword you filter on.

Reassign now does it per calendar, with one extra control: you can tell it which events to copy, in plain words, and the AI reads for meaning, not for a keyword.

Copy events from one calendar to another automatically

Connect Google Calendar or Outlook, open a calendar’s settings, and find Mirror events. It has three options:

• Always mirror. Every new event from this calendar gets a copy.
• Don’t mirror. Nothing is copied. This is the default.
• Let AI choose. The AI reads each event and copies the ones that match your rule.

Then pick the target under To calendar. The list shows every calendar you can edit, across all your connected accounts. A calendar cannot mirror onto itself, and a task list is never a source or a target.

Copy only what belongs

“Always” is right when the whole calendar belongs on both sides. Usually it does not. Your work calendar holds client calls, and it also holds focus blocks, lunch, and a recurring team standup that your family does not need to see.

Choose Let AI choose and write the rule in plain words: Only client meetings. Skip focus blocks. The AI checks each new event against that rule. It copies an event only when the event clearly matches, and when it is unsure, it does not copy. If the AI call fails, Reassign asks again later. Let AI choose needs AI sync turned on; Always mirror works without it.

With no rule at all, the AI uses the target calendar’s name as the rule. Mirror to a calendar named Family, and it copies the events that look like they belong on Family.

What the copy carries

The copy gets the times and, unless the copy uses Busy only, the title and the notes. A recurring event copies as a recurring series, and a change to one occurrence reaches the copy too. Move or rename the event and the copy follows. Delete the event at the source, or one occurrence of it, and the copy goes too.

Some things stay behind, on purpose:

• Location, attendees, and colour are not copied. The copy is a block of time with a name, not a second invitation.
• All-day events are never copied.
• The title and notes follow the copy style. See the next section.

Full details, Private, or Busy only

Each target calendar sets what a copy shows there, under Copies on this calendar:

• Full details. The title and the notes, as above.
• Private. The title and the notes, marked private. The owner and people granted access to private details can still read them; the provider applies the calendar’s sharing permissions.
• Busy only. The title becomes “Busy” and the notes stay empty. Set Title of busy copies to use your own word.

One event can override the default in its mirror menu (Mirror to calendars… when no calendar is picked yet), under What each copy shows. The style changes only the copy. An explicit event style still wins if you later change the calendar default. The event at the source never changes. When to use each style, and what colleagues see →

One way, by design

A mirror is one-way. Edits flow from the source to the copy, never back. Edit the copy on the target calendar and the source does not change. Delete the copy there and Reassign unlinks it and does not put it back.

A mirror applies to events that arrive after you turn it on, within the nine days of calendar that Reassign syncs. Turn it off, or point it at another calendar, and Reassign deletes the copies it made on the old target. That also removes a copy you added by hand from that calendar to the same target. Disconnecting stops sync and keeps imported blocks and copies. Deleting a source removes its linked imports and queues removal of their copies on other connected accounts. Copies on the account you remove are not deleted by that cleanup. To remove copies, turn off the mirror while both accounts are connected and check the target calendar before removing a connection.

For one-off copies, you do not need a rule. Open any block on the dial and add mirror calendars in its calendar picker. A calendar mirror sends every matching event to one target. The per-block list can send one event to several. A block with no home calendar can get copies too, if it does not repeat.

Then look at one day

The copies are the plumbing. The reason to connect both calendars is the dial: every calendar on one 24-hour ring, each in its own colour, sorted into your areas. You see the clash before your partner books dinner on top of the call. How two-way calendar sync works →

Calendar sync and mirrors are included in Pro: $14/month or $120/year. Start your 7-day trial, connect two calendars, and mirror the one that keeps colliding. No card required. No automatic charge.