Telegram allows scheduling messages.
+message#85d6cbe2 flags:# out:flags.1?true mentioned:flags.4?true media_unread:flags.5?true silent:flags.13?true post:flags.14?true from_scheduled:flags.18?true legacy:flags.19?true edit_hide:flags.21?true pinned:flags.24?true id:int from_id:flags.8?Peer peer_id:Peer fwd_from:flags.2?MessageFwdHeader via_bot_id:flags.11?long reply_to:flags.3?MessageReplyHeader date:int message:string media:flags.9?MessageMedia reply_markup:flags.6?ReplyMarkup entities:flags.7?Vector<MessageEntity> views:flags.10?int forwards:flags.10?int replies:flags.23?MessageReplies edit_date:flags.15?int post_author:flags.16?string grouped_id:flags.17?long restriction_reason:flags.22?Vector<RestrictionReason> ttl_period:flags.25?int = Message;
+
+updateNewScheduledMessage#39a51dfb message:Message = Update;
+updateDeleteScheduledMessages#90866cee peer:Peer messages:Vector<int> = Update;
+
+---functions---
+
+messages.sendMessage#520c3870 flags:# no_webpage:flags.1?true silent:flags.5?true background:flags.6?true clear_draft:flags.7?true peer:InputPeer reply_to_msg_id:flags.0?int message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int = Updates;
+
+messages.sendMedia#3491eba9 flags:# silent:flags.5?true background:flags.6?true clear_draft:flags.7?true peer:InputPeer reply_to_msg_id:flags.0?int media:InputMedia message:string random_id:long reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.10?int = Updates;To schedule a message, simply provide a future unixtime in the schedule_date flag of messages.sendMessage or messages.sendMedia.
The specified message or media will be added to a server-side schedule queue for the current chat, and will be automatically sent at the specified time.
+The method call generates the following updates:
schedule_date, an updateNewMessage or updateNewChannelMessage with the from_scheduled flag set, indicating to the sender that the specified scheduled message was sent. schedule_date, an updateDeleteScheduledMessages, indicating that the message was flushed from the schedule queue.If the schedule_date is less than 10 seconds in the future, the message will be sent immediately, generating a normal updateNewMessage/updateNewChannelMessage .
updateNewScheduledMessage#39a51dfb message:Message = Update;
+updateDeleteScheduledMessages#90866cee peer:Peer messages:Vector<int> = Update;
+
+---functions---
+
+messages.getScheduledHistory#f516760b peer:InputPeer hash:long = messages.Messages;
+messages.getScheduledMessages#bdbb0464 peer:InputPeer id:Vector<int> = messages.Messages;
+messages.sendScheduledMessages#bd38850a peer:InputPeer id:Vector<int> = Updates;
+messages.deleteScheduledMessages#59ae2b16 peer:InputPeer id:Vector<int> = Updates;
+
+messages.editMessage#48f71778 flags:# no_webpage:flags.1?true peer:InputPeer id:int message:flags.11?string media:flags.14?InputMedia reply_markup:flags.2?ReplyMarkup entities:flags.3?Vector<MessageEntity> schedule_date:flags.15?int = Updates;Clients can manually edit the schedule queue of a certain chat, providing the scheduled message ID obtained from updateNewScheduledMessage.
+Modifying scheduled messages will generate an updateNewScheduledMessage with the same ID, and updated information.
+Deleting scheduled messages will generate an updateDeleteScheduledMessages.