How old is Edison's light bulb?

Edison's light bulb is 146 years old.

Edison's light bulb was publicly demonstrated on December 31, 1879. That's 146 years, 8 months and 27 days.

as of September 2026

Edison lit up his Menlo Park lab for crowds on New Year's Eve.

Edison's light bulb turns 150 on December 31, 2029.

If you were born before December 31, 1879, you're older than Edison's light bulb.

Mind-bender: Edison's light bulb is closer in time to the first fax machine patent (1843) than to today.

What are you older than?

Type your birthday and see what you're older than, what you were born closer to, and your next big milestone.