When did tsar autocracy collapse​

1917

Explanation:

The Tsarist autocracy collapsed in 1917 due to the following reasons— (a) Miserable Condition of the Workers (i) The industrial workers in Russia got very low wages. (ii) They had very long working hours, sometimes upto 15 hours.

answer; i believe its (jade); good luck

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: