mini|Greenwich sat sa standardnim mjerenjima GMT je engleska skraćenica za Greenwich Mean Time, a ime je dobilo po nultom meridijanu, koji prolazi kroz opservatorij u Greenwichu kraj Londona.
Danas ta skraćenica izlazi iz upotrebe (osim u pomorstvu, gdje je zadržala svoje tradicionalno ime), zamjenjuje je UTC što znači Koordinirano svjetsko vrijeme. Reference
Dumortier, J, Hannelore, D, & Loncke, M. (n.d.). "Legal Aspects of Trusted Time services in Europe". AMANO. Datum pristupa: 8. juli 2009. Howse, D. (1997). Greenwich time and the longitude. London: Philip Wilson. Interpretation Act, R.S.C. 1985, c. I-21. (2005). CanLII. (Kanadski ustav) Interpretation Act 1978. UK Law Statute Database. (UK ustav) Interpretation Act 2005. British and Irish Legal Information Institute. (Irski ustav) Myers, J. (2007). History of legal time in Britain. Datum pristupa: 4. januar 2008. Seago, J.H., & Seidelmann, P. K. (c. 2001). National Legal Requirements for Coordinating with Universal Time. Steve Allen sa University of California Observatories. Datum pristupa: 8. juli 2009. Six pip salute. BBC News. Datum pristupa: 9. juli 2009. Standard Time Act, 1968. Irish Statute Book. Office of the Attorney General. (Irski ustav) Standard Time (Amandman) Act, 1971. British and Irish Legal Information Institute. (Irski ustav)
Vanjski linkovi Greenwich Mean Time World Time Zone Map with current time NIST — World Time Scales International Earth Rotation and Reference Systems Service Royal Observatory, Greenwich The original BBC World Service GMT time signal in mp3 format
Kategorija:Vremenske zone