This document summarizes the "This is Our Time" global communications project initiated by UNESCO. It discusses how the project brings together schools from over 20 countries for a 24-hour online lesson marathon where students exchange information and learn about each other. It also outlines Croatia's Gimnazija Bjelovar secondary school's participation over the past few years, including winning first place in the 2020-2021 school year with a team of 47 students from 11 classes who collaborated online to solve quiz questions about the participating countries. Students are encouraged to get involved in the project at http://timeproject.org.