`remind`: Send a message in a channel at certain times.

    You must have the Manage Messages permission to interact with this command.

    Reminders are defined in a `crontab`-style format that allows control over
    which minute, hour, day of the month, month, and/or day of the week the
    reminder is sent. A reminder also has a name, used to identify it for
    editing; a channel, where it is sent; and a message, which is the text that
    is sent in the reminder. For maximum effectiveness, consider mentioning a
    relevant role in the reminder's message.

    **Note:** Before reminders can be added in your server, you must set your
    server's timezone using `timezone`.

    **Subcommands:**
        `remind add NAME FORMAT TEXT`: Add a reminder to this channel.
        `remind remove NAME`: Delete a reminder from this channel.
        `remind list`: List all reminders in the server.
        `remind move NAME`: Move a reminder to this channel.
        `remind rename OLD NEW`: Rename a reminder.
        `remind updatetime NAME FORMAT`: Change when a reminder triggers.
        `remind updatetext NAME TEXT`: Change the message a reminder sends.
        `remind enable NAME`: Enable a disabled reminder.
        `remind disable NAME`: Stop a reminder from triggering.

    **Reminder input format:**
        The input format for a reminder is similar to a `crontab` entry. There
        are five parts, separated by a space:
        - Minute (0-59)
        - Hour (0-23)
        - Day of month (1-31)
        - Month (1-12)
        - Day of week (0-6) (Sunday to Saturday)
        Any of these can be replaced by an asterisk (`*`), which means there is
        no restriction for that element of time.