The calendar
Your word opens it.
SMTWTFS
On your phone's own calendar
Subscribe once and this whole calendar — your days, what is due, and every post Blastpack is going to send — stays on your phone by itself.
iPhone: tap it, then Subscribe. Google Calendar: copy the address, then Other calendars → From URL.
Everything with a time is already here — what the list says is due, what the queue is waiting to post, and the day a note went live. You did not have to enter any of it twice.