BEIJING (AP) — China will change its national holiday schedule to ease overcrowding on trains, flights and other transport systems, often swamped when many of the country's 1.3 billion people try to travel at the same time.

The changes, announced Sunday night by China's Cabinet, will bring back three traditional one-day holidays and let workers take paid vacations at times other than officially set breaks.

Previously, the government had designated three weeks out of each year as national vacation times, when most factories and offices closed.

Under the changes, which start next year, the weeklong May Day vacation will be replaced by three traditional, one-day holidays: grave-sweeping day, the dragon boat festival and the mid-autumn festival, scattered throughout the year. May Day itself will be a separate one-day holiday. There will be 11 national holidays a year.