Method and apparatus for providing reminder based on chat room

A method of providing a reminder based on a chat room performed by a chat room based reminder apparatus connected to at least one user terminal, the method comprising:

• managing a message thread corresponding to a chat room related to a user terminal of the at least one user terminal and a to-do item set including at least one to-do item related to the message thread and comprising a to-do receiver, to-do contents, a to-do status, a to-do provider that provides the to-do item to the to-do receiver, and a deadline;
• generating a reminder set comprising at least one reminder to-do item satisfying a reminder condition in the to-do item set;
• generating a reminder message for each of the at least one reminder to-do item;
• detecting a time zone of the to-do receiver and delaying to add the reminder message to the message thread to a receivable time of the to-do receiver;
• and
• selecting, from among the to-do provider and the to-do receiver and based on the to-do status, a target to which the reminder message is provided,
• wherein the to-do status is at least one of a ‘new’ status, a ‘doing’ status, a ‘done’ status, a ‘confirmation’ status, and a ‘complete’ status according to an execution status on a processing step of the to-do item,
• wherein the reminder message is provided to the to-do receiver based on the selection of the to-do receiver as the target when the to-do status is one of the ‘new’ status or the ‘doing’ status, and
• wherein the reminder message is provided to the to-do provider based on the selection of the to-do provider as the target when the to-do status is the ‘done’ status.