(CNN) Videos on YouTube will now default to standard definition for all users worldwide, a step down from the typical high definition that users normally see.

The move is aimed at easing the burden on internet infrastructure as lockdowns and other emergency policies have kept millions at home.

The global change, which was announced and began rolling out on Tuesday, is expected to last for approximately 30 days as millions of people around the globe stay home amid the coronavirus pandemic.

In a statement, YouTube said the move is meant "to do our part to minimize stress on the system during this unprecedented situation."

Users will still be able to manually change to a higher resolution on a per-video basis, YouTube told CNN.

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