Night Time Calculator

Calculate night flight time for logbook entries. FAA civil twilight definition (sun 6° below horizon). Cross-country route sampling.

Night Time Calculator

Calculate night flight time for logbook entries. Uses FAA civil twilight definition (14 CFR §1.1): sun more than 6° below horizon. Samples your route for cross-country accuracy.

Departure date

Arrival date (overnight)

Off-block (UTC)

On-block (UTC)

Departure

Arrival

Disclaimer

For logbook reference only. Uses civil twilight (sun 6° below horizon). Verify with official sources for currency and legal purposes.

Uses 28,000+ airports worldwide. Enter any ICAO code (e.g. KJFK, EGLL, LFPG, RJTT).