In the Slovenian Telecommunication Service, Air Traffic Services and Aeronautical Meteorological Service units of measurement according to ICAO Annex 5 are applied.
Units of measurement annotated by (*) are approved by ICAO as alternative units for an undetermined transition period and will be retained until further notice:
| For measurement of | Units |
|---|---|
| Distance used in navigation, position reporting, etc. generally in excess of 2 to 3 nautical miles | Nautical Miles and tenths * |
| Relatively short distances such as those relating to aerodromes | Metres |
| Altitudes, elevations and heights | |
| Horizontal speed including wind speed | Knots * |
| Vertical speed | Feet per minute * |
| Wind direction for landing and taking off | Degrees Magnetic |
| Wind direction except for landing and taking off | Degrees True |
| Visibility including runway visual range | Kilometres or metres |
| Altimeter setting, atmospheric pressure | Hectopascals |
| Temperature | Degrees Celsius |
| Weight, mass | Metric tonnes or Kilogrammes |
| Time | Hours, minutes and seconds; the day of 24 hours beginning at midnight UTC |
| Volume, tank capacity | Litres |
| Pump capacity (delivery rate) | Litres per minute |
All published co-ordinates indicating latitude and longitude are expressed in terms of the World Geodetic System-1984 (WGS-84) geodetic reference datum.
The area of application for the published geographical co-ordinates coincides with the area of responsibility of the Aeronautical Information Service, i.e. the entire territory of the Republic of Slovenia (LJUBLJANA Flight Information Region).
An asterisk (*) is used to identify those co-ordinates which are not expressed in terms of the WGS-84.
The nationality mark for civil aircraft registered in Slovenia consists of the letters S5.
The nationality mark is followed by hyphen and the registration mark:
| Name | Date |
|---|---|
| NEW YEAR | 01,02 JAN |
| SLOVENE CULTURAL HOLIDAY | 08 FEB |
| EASTER MONDAY | MOVABLE HOLIDAY |
| DAY OF UPRISING AGAINST THE OCCUPIER | 27 APR |
| LABOUR DAY | 01, 02 MAY |
| STATEHOOD DAY | 25 JUN |
| ASSUMPTION DAY | 15 AUG |
| REFORMATION DAY | 31 OCT |
| REMEMBRANCE DAY | 01 NOV |
| CHRISTMAS | 25 DEC |
| INDEPENDENCE DAY | 26 DEC |