Air Navigation Course

Time

8 modules · 16 lessons · 1 checkpoint
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T0

Time foundations

Build the Earth and longitude picture behind local time.

2 lessons
  1. OPENLocal Time Around the EarthSee why clocks are later east and earlier west.Open lesson
  2. OPENLongitude, Latitude and TimeUse longitude, not latitude, to compare local time.Open lesson
T1

Arc and time

Move confidently between longitude arc and elapsed time.

2 lessons
  1. OPENLongitude to TimeConvert a longitude difference into a time difference.Open lesson
  2. OPENTime to LongitudeConvert a time difference back into longitude.Open lesson
T2

UTC and LMT

Use longitude to convert in both directions.

2 lessons
  1. OPENUTC to LMTFind local mean time from UTC and longitude.Open lesson
  2. OPENLMT to UTCWork backwards from local mean time to UTC.Open lesson
T3

Local time transfers

Transfer time between places and recover longitude.

3 lessons
  1. OPENLMT Between PlacesTransfer local mean time from one place to another.Open lesson
  2. OPENLMT at Multiple PlacesFind local mean time at several places from one UTC.Open lesson
  3. OPENLongitude from Time DifferencesFind a place's longitude from its local time.Open lesson
T4

Standard time

Separate time systems, zones and Indian Standard Time.

3 lessons
  1. OPENTypes of TimeTell UTC, LMT, Zone Time and national time apart.Open lesson
  2. OPENZone TimeFind an ideal time zone from longitude.Open lesson
  3. OPENIndian Standard TimeUse India's standard meridian to work with IST.Open lesson
T5

Dates and flights

Carry dates correctly through the Date Line and flight ETA.

2 lessons
  1. OPENInternational Date LineChange the date correctly at the International Date Line.Open lesson
  2. OPENFlight Time and ETACombine departure time and flight time to find ETA.Open lesson
T6

Solar time

Work with apparent time and published Sun event data.

2 lessons
  1. OPENMean and Apparent TimeTell mean solar time and apparent solar time apart.Open lesson
  2. OPENSun Event TablesTransfer a tabulated Sun event to another longitude.Open lesson
T7

Chapter checkpoint

Test all the main Time skills in one mixed set.

13 questions
  1. GOTime chapter checkpointScore 11 out of 13 to pass. Retake after revision if needed.Start checkpoint