Due to possible different time zones, PostSpeaker starts processing about 12 hours before the actual publication date and time. For example, if a promoter lives in Canada and you live in Amsterdam, the time difference is -6 hours. That message must therefore be published earlier. As long as a message is in ‘In progress’ you can revoke it by clicking on the ‘Revoke’ button at the bottom of the message. You can of course not undo the publication of messages that have already been posted in certain time zones.