Zoe Delgado

As Associate Editor, Zoe spends most of her time in the weeds of date arithmetic, the kind of thing that seems trivial until you actually try to subtract across months with different lengths. Her work on Free Age Calculator Online centers on the mechanics of calculating elapsed time and making sure the tools people rely on behave consistently. She approaches each article like a small debugging exercise, looking for where assumptions break down.

Her bread and butter is the stuff that makes people second-guess themselves. What happens when a start date is February 29. Whether elapsed time should account for inclusive or exclusive counting on the endpoints. How time zones shift things when someone born in one country wants their age calculated relative to another. She walks through these scenarios with worked examples because she finds that's the only way to make the logic stick.

She is careful to separate what the math says from what any particular institution or jurisdiction might require. A calculator can tell you exactly how many days have passed, but whether that count means what you need it to for a visa application or an insurance policy is a different matter. She points readers toward official sources whenever a calculation has real-world stakes.