Parts of the day
Each part of the day is a noun, and “in the …” is that noun with the instrumental ending, the case for “by means of” or “during”: у́тро (morning) → у́тром (in the morning). No preposition is needed.
Days of the week
Russian days are written in lower case. For one day, use в + accusative: в сре́ду, “on Wednesday”. For every week, use по + dative plural: по сре́дам, “on Wednesdays”.
| Day | Pronunciation | On … (once) | On …s (every week) | Where the name comes from |
|---|---|---|---|---|
| pa-ni-DYEL’-nik | в понеде́льник | по понеде́льникам | From “after the week” (неде́ля once meant Sunday). | |
| FTOR-nik | во вто́рник | по вто́рникам | From второ́й, “second”. во before в- for easier saying. | |
| sri-DA | в сре́ду | по сре́дам | From “middle”: the middle of the week. | |
| chit-VYERK | в четве́рг | по четверга́м | From четвёртый, “fourth”. | |
| PYAT-ni-tsa | в пя́тницу | по пя́тницам | From пя́тый, “fifth”. | |
| su-BO-ta | в суббо́ту | по суббо́там | From Hebrew Sabbath. | |
| vas-kri-SYE-n’ye | в воскресе́нье | по воскресе́ньям | Means “resurrection”. |
How often
Frequency words usually go before the verb. Note никогда́ (never): like all Russian negative words, it still needs не before the verb.
Ago, in, for and within
Four small words place an amount of time relative to now. Each takes the time phrase in the accusative (the case for amounts of time), and наза́д comes after it.
Units of time after numbers
After a number, the noun changes: 1 takes the basic form, 2–4 the genitive singular, 5 and up the genitive plural. The last digit decides, except 11–14, which always behave like 5. For a span of time the feminine words take accusative -у after 1: одну́ мину́ту.
| Unit | 1 | 2, 3, 4 | 5 and up |
|---|---|---|---|
| одна́ секу́нда | две секу́нды | пять секу́нд | |
| одна́ мину́та | две мину́ты | пять мину́т | |
| оди́н час | два часа́ | пять часо́в | |
| оди́н день | два дня | пять дней | |
| одна́ неде́ля | две неде́ли | пять неде́ль | |
| оди́н ме́сяц | два ме́сяца | пять ме́сяцев | |
| оди́н год | два го́да | пять лет |