Allahabad Observatory

The Allahabad Observatory located in the suburb of Jhusi, just outside Prayagraj is the centre responsible for maintaining the Indian Standard Time.^[1] The observatory is located at 82.5°E longitude, which translates to an exact time difference of 5 hours and 30 minutes ahead of Coordinated Universal Time (UTC) i.e. UTC+05:30.^[2]

^ "Allahabad". Indian Institute of Geomagnetism. Archived from the original on 16 January 2021. Retrieved 8 February 2021.
^ Latief Ahmad, Raihana Habib Kanth, Sabah Parvaze, Syed Sheraz Mahdi (20 December 2017). "Chapter 2 Agro-meteorological Observatory 2.8 Calculation of Local Mean Time". Experimental Agrometeorology: A Practical Manual. Springer. p. 11. ISBN 978-3-319-69184-8.{{cite book}}: CS1 maint: multiple names: authors list (link)

[1] "Allahabad". Indian Institute of Geomagnetism. Archived from the original on 16 January 2021. Retrieved 8 February 2021.

[2] Latief Ahmad, Raihana Habib Kanth, Sabah Parvaze, Syed Sheraz Mahdi (20 December 2017). "Chapter 2 Agro-meteorological Observatory 2.8 Calculation of Local Mean Time". Experimental Agrometeorology: A Practical Manual. Springer. p. 11. ISBN 978-3-319-69184-8.{{cite book}}: CS1 maint: multiple names: authors list (link)

[1]

[2]