Happy Mother's Day 2020 to moms, grandmoms and great-grandmoms. Mother's Day is a celebration honoring mothers and celebrating motherhood, maternal bonds and the influence of mothers in society. It is celebrated on various days in many parts of the world, yet most commonly in March, April, or May. In most countries Mother's Day is celebrated on the second Sunday in May, among them the USA, Canada, most European countries, Australia, New Zealand, India, China, Japan, the Philippines and South Africa. One notable exception to this rule are the UK and Ireland, which celebrate Mother's Day on the fourth Sunday in Lent. Most Arab countries celebrate Mother's Day on March 21st - The Vernal Equinox - and East European countries celebrate Mother's Day on March 8th.