Skip to main content

    Time Unit Converter

    Convert between nanoseconds and years with system design context

    Time Converter

    Enter a value and unit to see all conversions

    Conversions

    Common Durations

    Click to load typical durations in computing and real life

    Quick Reference

    Common Values
    1 second = 1,000 ms
    1 minute = 60 seconds
    1 hour = 3,600 seconds
    1 day = 86,400 seconds
    1 week = 604,800 seconds
    1 year ≈ 31.5M seconds
    System Design
    1 ns = L1 cache ref
    100 ns = RAM access
    1 ms = SSD read
    10 ms = HDD seek
    150 ms = Transatlantic RTT

    Rate Calculations

    Requests Per Second
    RPS = Total Requests / Time (seconds)
    Ex: 1M requests in 1 hour = 278 RPS
    Operations Per Day
    Ops/Day = RPS × 86,400
    Ex: 100 RPS = 8.64M ops/day
    Events Per Hour
    Events/Hour = RPS × 3,600
    Ex: 50 RPS = 180K events/hour
    Throughput
    MB/s = (Data Size × RPS) / 1,000,000
    Ex: 1KB per request × 1000 RPS = 1 MB/s