RU

The day before the holiday stop trading and start trading after 2 - 3 days
There are no hard rules brokers to trade time and every broker builds its net sales and holidays. Very often, brokers arrange on their terminal "holiday" on the occasion, but despite the fact that the broker does not trade in the world's stock exchanges continue to trade and price builds its graphics.
At the bottom of examples.
The red line is allocated the same time from different brokers and you can see that one indicator is on sale, and others on the purchase. This is associated with only one problem, the lack of a broker on the chart of the data, the time when this was the broker did not trade in the "holiday", and accordingly, that the indicator will display incorrect data.