time (n)
/taɪm/

the part of existence that is measured in minutes, days, years, etc.

midnight (n)
/ˈmɪd.naɪt/

twelve o'clock at night

night (n)
/naɪt/

the time between one day and the next when it is dark, when people usually sleep

hour (n)
 /aʊr/

a period of 60 minutes

quarter (n)
/ˈkwɑː.t̬ɚ/

one of four periods of time into which a year is divided for financial calculations

o'clock (r)
/əˈklɑːk/

used after a number from one to twelve to say the time when it is exactly that hour

weekday (n)
/ˈwiːk.deɪ/

a day of the week that is not Saturday or Sunday

century (n)
/ˈsen.tʃər.i/

a period of 100 years

decade (n)
/dekˈeɪd/

a period of ten years, especially one beginning with a year that ends in a 0, for example 1990 to 1999

evening (n)
 /ˈiːv.nɪŋ/

the part of the day between the end of the afternoon and night

afternoon (n)
/ˌæf.tɚˈnuːn/

the period of time between the middle of the day and the beginning of the evening

day (n)
 /deɪ/

a period of 24 hours, especially from twelve o'clock one night to twelve o'clock the next night

month (n)
/mʌnθ/

one of the 12 periods that a year is divided into, such as January, February etc

year (n)
/jɪr/

a period of twelve months, especially from 1 January to 31 December

date (n)
 /deɪt/

a numbered day in a month, often given with a combination of the name of the day, the month, and the year

week (n)
 /wiːk/

a period of seven days, usually counted from a Sunday

weekend (n)
/ˈwiːk.end/

Saturday and Sunday

in time (pre)
/ɪn taɪm/

early enough

morning (n)
/ˈmɔːr.nɪŋ/ 

the part of the day from when the sun rises until midday

millennium (n)
 /mɪˈlen.i.əm/ 

a period of 1,000 years