During the Octave of Pentecost this week, Wednesday, Friday and Saturday are the "summer" Ember Days.
Ember Days are a quarterly observance of three days (Wednesday, Friday and Saturday), with the original focus on gratitude to God for various harvests, fixed near the beginning of each season of the solar cycle (winter, spring, summer and autumn). As the observances were added to the Liturgical Year, the themes expanded to asking for blessings on mankind and prayer for priests, especially for those being ordained. Ember Days became days of prayer, fasting and abstinence, stressing personal spiritual renewal. (https://www.catholicculture.org/commentary/summer-or-pentecost-ember-days/).