Age Calculator
Unix Command Equivalent
Calculate Age with Unix Date
Use Unix date command to calculate precise age
birth="YYYY-MM-DD"
today=$(date +%s)
birth_epoch=$(date -d "$birth" +%s)
age_years=$(((today - birth_epoch) / 31536000))
echo "Age: $age_years years"Advertisement
Related Guides & Tutorials
// developers also readTutorial
8 min
Unix Timestamps in JavaScript
Use Date.now() and timestamp arithmetic to calculate precise ages in JavaScript.
Read guide
Tutorial
7 min
Calendar Timestamp Components
Build date pickers and age calculators using Unix timestamps as the underlying data model.
Read guide
Deep Dive
12 min
Unix Timestamp Precision Guide
Understand how timestamp precision affects date calculations and age computations.
Read guide