MEASURING SYSTEM, AIRCRAFT MARKINGS, HOLIDAYSUNITS OF MEASUREMENTThe following table of units of measurement will be used by aeronautical stations within Vilnius for air and ground operations.FOR MEASUREMENT OFUNITS USEDDistance used in navigation, position reporting, etc. generally in excess of 2 nautical milesNautical Miles and tenthsRelatively short distances such as those relating to aerodromes (e.g. runway lengths)MetresAltitudes, elevations and heightsFeetHorizontal speed including wind speedKnotsVertical rateFeet per minuteWind direction for landing and taking offDegrees MagneticWind direction except for landing and taking offDegrees TrueVisibility including runway visual rangeKilometres or MetresAltimeter settingHectopascalTemperatureDegrees CentigradeWeightMetric tons or KilogrammesTimeHours and Minutes, the day of 24 hours beginning at midnight UTCTEMPORAL REFERENCE SYSTEMGeneralCoordinated Universal Time (UTC) and the Gregorian calendar are used by navigation services and in publications issued by the Aeronautical Information Service.Reporting of time, is expressed to the nearest minute, e.g. 12:40:35 is reported 1241.In the AIP and associated publications the expression “summer period” will indicate that part of the year in which the “daylight saving time” is in force. The other part of the year will be named the “winter period”.The “summer period” in Lithuania will be introduced every year on the last Sunday in March at 0100 and it will cease on the last Sunday in October at 0100 .Times applicable during the “summer period” are given in brackets. Local time is:UTC plus 2 HR, during the winter period;UTC plus 3 HR, during the summer period.HORIZONTAL REFERENCE SYSTEMName/designation of the reference systemAll published geographical coordinates indicating latitude and longitude are expressed in terms of the World Geodetic System - 1984 (WGS-84) geodetic reference datum. Identification and parameters of the projectionProjection is expressed in term of Universal Transverse Mercator (UTM). Identification of the ellipsoid usedEllipsoid is expressed in terms of the World Geodetic System – 1984 (WGS-84) ellipsoid.Identification of the datum usedThe World Geodetic System – 1984 (WGS-84) is used.Area of applicationThe area of application for the published geographical coordinates coincides with the area of responsibility of the Aeronautical Information Service, i.e. the entire territory of the Republic of Lithuania as well as the airspace over the high sea encompassed by the Vilnius Flight Information Region in accordance with the regional air navigation agreement.An explanation of the asterisk used to identify coordinates An asterisk (*) will be used to identify those published geographical coordinates which have been transformed into WGS-84 coordinates but whose accuracy of original field work does not meet the accuracy requirements in Annex 11, Chapter 2 and ICAO Annex 14, Volumes I and II, Chapter 2.VERTICAL REFERENCE SYSTEMName/destination of the reference systemThe vertical reference system corresponds to mean sea level ().Description of the geoid model usedThe geoid model used is the Earth Gravitational Model 1996 - (EGM-96).AIRCRAFT NATIONALITY AND REGISTRATION MARKSThe nationality mark for aircraft registered in the Republic of Lithuania are the letters LY.The nationality mark is followed by a hyphen and a registration mark consisting of 3 letters, e.g. LY-ABC.PUBLIC HOLIDAYSName202620272028New Year’s Day01 JAN01 JAN01 JANIndependence Day16 FEB16 FEB16 FEBRe-establishment of the State11 MAR11 MAR11 MAREaster05, 06 APR28, 29 MAR16, 17 APRInternational Labour Day01 MAY01 MAY01 MAYMother’s Day03 MAY02 MAY07 MAYFather’s Day07 JUN06 JUN04 JUNMidsummer Day24 JUN24 JUN24 JUNDay of Statehood06 JUL06 JUL06 JULAssumption Day15 AUG15 AUG15 AUGAll Saint's Day01, 02 NOV01, 02 NOV01, 02 NOVChristmas Eve24 DEC24 DEC24 DECChristmas Days25, 26 DEC25, 26 DEC25, 26 DEC