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Bhardwaj, T.
- Necessity of ‘Two Time Zones: IST-I (UTC + 5 : 30 h) and IST-II (UTC + 6 : 30 h)’ in India and Its Implementation
Abstract Views :299 |
PDF Views:135
Authors
Lakhi Sharma
1,
S. De
1,
P. Kandpal
2,
M. P. Olaniya
2,
S. Yadav
2,
T. Bhardwaj
2,
P. Thorat
2,
S. Panja
1,
P. Arora
1,
N. Sharma
2,
A. Agarwal
1,
T. D. Senguttuvan
1,
V. N. Ojha
1,
D. K. Aswal
1
Affiliations
1 Academy of Scientific and Innovative Research (AcSIR), CSIR-NPL Campus, New Delhi 110 012, IN
2 CSIR-National Physical Laboratory (CSIR-NPL), Dr K. S. Krishnan Marg, New Delhi 110 012,, IN
1 Academy of Scientific and Innovative Research (AcSIR), CSIR-NPL Campus, New Delhi 110 012, IN
2 CSIR-National Physical Laboratory (CSIR-NPL), Dr K. S. Krishnan Marg, New Delhi 110 012,, IN
Source
Current Science, Vol 115, No 7 (2018), Pagination: 1252-1261Abstract
A strong demand of a separate time zone by northeast populace has been a matter of great debate for a very long period. However, no implementable solution to this genuine problem has yet been proposed. The CSIR-National Physical Laboratory, CSIR-NPL (the National Measurement Institute, NMI, o f India and custodian o f Indian Standard Time, IST) proposes an implementable solution that puts the country in two time zones: (i) IST-I (UTC + 5: 30 h, represented by longitude passing through 82 °33 E) covering the regions falling between longitude 68 °7 E and 89 °52 E and (ii) IST-II (UTC + 6: 30 h, represented by longitude passing through 97°30E) encompassing the regions between 89°52E and 97°25E. The proposed demarcation line between IST-I and IST-II, falling at longitude 89 °52 E, is derived from analyses o f synchronizing the circadian clocks to normal office hours (9: 00 a.m. to 5 : 30p.m.). This demarcation line passes through the border of West Bengal and Assam and has a narrow spatial extension, which makes it easier to implement from the railways point o f view. Once approved, the implementation would require establishment of a laboratory for ‘Primary Time Ensemble - I I ’ generating IST-II in any o f the north-eastern states, which would be equivalent to the existing ‘Primary Time Ensemble-I’ at CSIR-NPL, New Delhi.Keywords
Circadian Clock, Energy Saving, Indian Standard Time, Longitude, Sun Graphs, Two Time Zone.References
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