21 June will be the UN International Day of Yoga, which has been celebrated around the world each year since 2015 following a suggestion by Guruji in 2012.
In 2015 Geetaji wrote:
“We are all yoga sādhakās and sādhanā is our very breath, our prāna. The United Nations has declared 21st June as the International Yoga Day, which will be celebrated all over the world. For us every day is yoga day. However to respect this special day, to respect Guruji, we have thought of a special practice programme for this day. Many students from across the world approached me if they could have a special sequence of practice for this day… the (summer) solstice.” – Geeta Iyengar
You can download the original sequence suggested by Geetaji here