Learn Russian: Сейчас московское время — 22:00.

In an official or digital context like this, you say двадцать два ноль-ноль (twenty-two zero-zero) or двадцать два часа (twenty-two hours). When the minutes are exactly zero, saying ноль-ноль is the most common way to express it digitally.

Why is it московское время instead of Москва время?

In English, we can just place two nouns next to each other, like "Moscow time." In Russian, you usually need to change the first noun into an adjective. Московское is the adjective form of Москва. It gets the -ое ending because время is a neuter noun.

What is the purpose of the dash (—) right before the time?

The dash takes the place of the word "is." Because Russian drops the present tense verb "to be," writers often use a dash to act like an equal sign, clearly connecting the subject (московское время) to what it is (22:00).

Would I say "22:00" when chatting with a friend?

Probably not. The 24-hour clock is strictly used for official announcements, news, train schedules, and store hours. In casual, everyday conversation, Russians use the 12-hour clock and would say десять часов вечера (ten o'clock in the evening) instead.