On Thursday night, federal regulators announced that they were extending the midnight deadline to sign up for health insurance starting January 1, 2017 through the Affordable Care Act on Healthcare.gov.

The deadline has been extended four days to December 19.

39 states use Healthcare.gov as their health insurance marketplace. (The states that do not use Healthcare.gov are California, Connecticut, Colorado, Idaho, Maryland, Massachusetts, Minnesota, New York, Rhode Island, Vermont, Washington state, and Washington D.C.) Officials attributed the deadline extension to the “extraordinary volume of consumers” trying to sign up for health insurance. Gizmodo.com