Who sees the answers?

Only you, by default. Add public to the end of a command to post it in the channel.

What can the app read?

The text you type after /clock and the time zone of people you mention. It never reads channel messages.

No. Their time zone comes from their Slack profile, so it works as soon as the app is installed.

In Slack, open Apps, find ItsNineThere and choose Remove. We delete your workspace data when you do.

Add one slash command to your workspace and ask from any channel or DM. Answers are only visible to you, unless you choose to share them.

Slack app

Add one slash command to your workspace and ask from any channel or DM. Answers are only visible to you, unless you choose to share them.

Choose your workspace. If your workspace limits apps, Slack lets you send a request to your admin instead.

commands adds /clock. users:read lets the app see the time zone of people you mention. It cannot read your messages.

Type /clock help to see examples, or go straight to /clock tokyo. Only you see the answer.

Type /clock link in a channel and open the link. Log in to ItsNineThere, pick a board, and /clock team shows it in that channel.

Who sees the answers?: Only you, by default. Add public to the end of a command to post it in the channel.
What can the app read?: The text you type after /clock and the time zone of people you mention. It never reads channel messages.
Do teammates need to set anything up?: No. Their time zone comes from their Slack profile, so it works as soon as the app is installed.
How do I remove it?: In Slack, open Apps, find ItsNineThere and choose Remove. We delete your workspace data when you do.

Command	What it does
`/clock [city]`	Current time in a city or time zone, and how far ahead or behind you it is.
`/clock [@person]`	A teammate's local time from their Slack profile, and whether they're in working hours.
`/clock team`	Everyone on the board linked to this channel, with who's working right now.
`/clock [time] in [place]`	Convert a time. Use "my time" or "here" for your own time zone.
`/clock [anything] public`	Add public at the end to post the answer to the whole channel.
`/clock link`	Connect this channel to one of your team boards. /clock unlink removes it.
`/clock help`	Show examples right in Slack.