14 CFR Part 117, Table B — Flight Duty Period: Unaugmented Operations

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗

Scheduled time of start (acclimated time)	Maximum flight duty period (hours) for lineholders based onnumber of flight segments
1	2 \| 3 \| 4 \| 5 \| 6 \| 7 +
0000-0359	9 \| 9 \| 9 \| 9 \| 9 \| 9 \| 9
0400-0459	10 \| 10 \| 10 \| 10 \| 9 \| 9 \| 9
0500-0559	12 \| 12 \| 12 \| 12 \| 11.5 \| 11 \| 10.5
0600-0659	13 \| 13 \| 12 \| 12 \| 11.5 \| 11 \| 10.5
0700-1159	14 \| 14 \| 13 \| 13 \| 12.5 \| 12 \| 11.5
1200-1259	13 \| 13 \| 13 \| 13 \| 12.5 \| 12 \| 11.5
1300-1659	12 \| 12 \| 12 \| 12 \| 11.5 \| 11 \| 10.5
1700-2159	12 \| 12 \| 11 \| 11 \| 10 \| 9 \| 9
2200-2259	11 \| 11 \| 10 \| 10 \| 9 \| 9 \| 9
2300-2359	10 \| 10 \| 10 \| 9 \| 9 \| 9 \| 9