Our school days start with a brief 5 to 10 minutes morning assembly, which can be, and often are, Christ-centered -- devotional, prayer & hymn -- although it can also be something more generic, such as an uplifting story accompanied by music. On Fridays, the local parish pastors traditionally visit schools in their area to lead these devotionals, thus the Friday morning assembly especially is and has always been markedly Christian.
Finland also excels in the best-of-the-world education, so clearly, the "structured" daily "prayer time" of 5-10 minutes at the start of school work is not away from the quality education time itself. One might even argue that it gives pupils an opportunity to "calm down," collect their thoughts and focus on the day's work ahead.