[is next Sunday the Solemnity of the Sacred Heart?]  I'm talking about the 1962 Liturgical calendar.
My calendar has Sunday within the Octave of the Sacred Heart. Friday is First Friday AND Feast of the Sacred Heart of Jesus. Saturday is First Saturday.
Me too. And the latter is also Saturday
within the Octave. It hadn't occurred to me that abolishing octaves could be
 an excuse  a rationale for moving the feast to a Sunday.
But I don't know about the 1962 calendar, since they had eliminated octaves a lot.
Me neither, altho' I believe that's technically the
1960 liturgical calendar ("Good Pope John" XXIII, proprietor). I'd always assumed that when Pope Pius IX extended the increasingly popular feast to the Universal Church (1856), the
Feast of the Most Sacred Heart was simply placed on the first available day after the
Octave Day of Corpus Christi (a Thursday by definition), thus a
Friday.
But despite the time I've devoted to calendrical analysis, I never pondered how all that above relates--chronologically--to the customary votive devotion to the Sacred Heart on Fridays. Or (having previously failed to make the logical connection) to the likewise customary votive devotion to the Blessed Sacrament (literally
Corpus Christi only, for us laity) on Thursdays.