See exactly how long you have been together — to the second.
The word "anniversary" derives from the Latin anniversarius — "returning annually." While the term literally refers to yearly recurrence, the concept of marking meaningful recurring temporal milestones is much older and broader. This tool provides live countdown to upcoming anniversary dates.
Relationship research on the role of shared rituals — recurring, meaningful behaviours that are jointly performed — finds them to be one of the stronger predictors of relationship satisfaction. Anniversary celebration is among the most universal relationship rituals. Acknowledging anniversaries signals continued investment in the relationship and communicates that the original commitment remains meaningful. Couples who regularly mark anniversaries report higher relationship satisfaction than those who do not, even controlling for general relationship quality.
The tradition of assigning materials to anniversary years (paper for 1st, silver for 25th, gold for 50th, diamond for 60th) has varied versions in different cultures and time periods. The modern list most people recognise was popularised largely by the American National Retail Jeweler Association in the early 20th century — a fact that reveals its partly commercial origin. The symbolic associations (fragile paper becoming hard gold becoming brilliant diamond) are a narrative about the journey and increasing durability of a long relationship.
Related: Relationship Timeline · Birthday Countdown · Age Difference Calculator