Repeated and prolonged time (часами, годами)

Extended Duration and Repeated Time

When you want to emphasize that an action lasted for a long time (like "for hours" or "for years") or happened repeatedly over a time of day ("evening after evening"), Russian uses the bare Instrumental plural of time nouns. No prepositions are needed.

• час (hour) → часами (for hours)
• сутки (24-hour period) → сутками (for days on end)
• неделя (week) → неделями (for weeks)
• месяц (month) → месяцами (for months)
• год (year) → годами (for years)
• вечер (evening) → вечерами (in the evenings)
• ночь (night) → ночами (night after night)

Because these actions are prolonged or habitual, they naturally pair with Imperfective verbs, such as любоваться (to admire).

Wandering, Waiting, and Wondering

This pattern is perfect for describing extended periods of living, working, or waiting. You'll frequently hear it with verbs like скитаться (to wander) and отсутствовать (to be absent).

Similarly, it is used to describe prolonged mental or physical states, such as when someone has to размышлять (to ponder) for hours, or мучиться (to agonize) night after night.

Adding Emphasis with Adverbs

To highlight exactly how relentless or frustrating a prolonged action is, these Instrumental time nouns pair perfectly with adverbs like беспрерывно (continuously) and безрезультатно (in vain).