The caption for the photo in the "Time in Finland" infobox states
The Helsinki University Observatory, where Finland's local mean time is measured
But the web page for the observatory indicates it is now the visitor center for a museum. It seems that nothing is measured there anymore. Even if local mean time measurements were resumed (highly unlikely) they would only apply to the longitude of the observatory and not be suitable at other locations within Finland. Jc3s5h (talk) 14:41, 7 July 2022 (UTC)
- Thanks for bringing this up! It used to be "where Finland's local mean time is based" to indicate that the local mean time had once been calculated there, but was later changed to measured as the word was more descriptive. I have gone ahead and changed 'is' to 'was', hopefully that should look alright? 𓃦LunaEatsTuna (💬) 15:00, 7 July 2022 (UTC)
- I don't see any source to support the idea that the observatory ever conducted or disseminated time measurements. Jc3s5h (talk) 22:29, 7 July 2022 (UTC)
- What about the sources cited in the article?
Aika mitattiin Helsingin yliopiston observatoriossa [The time was measured at the observatory of the University of Helsinki]
— Citation 2, Heikki 1999, p. 81
[note this is a table listing mean times of countries and where they were measured] Helsingfors, Finland • University Observatory
— Citation 4, Maskelyne 1934, p. 688
𓃦LunaEatsTuna (💬) 22:42, 7 July 2022 (UTC)
- OK, I see there was a mean time observed in 1862 for use by the railroad. I also see that time observations were being made at the University in 1934, but by that time the country was observing standard time (2 hours ahead of UT), not local mean time.
- I also notice the passage "In 1862, the mean time UTC+01:39:49.2 was adopted for the railway." But UTC was not introduced until 1960.[1] A general symbol for time scales similar to UTC is UT. I will fix this error. Jc3s5h (talk) 00:47, 8 July 2022 (UTC)
References
McCarthy, D; Guinot, B (2013), "Time", in Urban, Sean; Seidelmann, P. Kenneth (eds.), Explanatory Supplement to the Astronomical Almanac (3rd ed.), Mill Valley, CA: University Science Books, p. 85