Braiden HSK 3 timing questions reading

www.texasmandarin.com点 / 刻 diǎn / kè o'clock / quarter-hour 才 cái not until / only then 差 chà short of / to (time) 迟到 chídào to be late 一共 / 一直 yígòng / yìzhí in total / continuously 提前 tíqián ahead of time 月初 yuèchū beginning of the month 月中 yuèzhōng middle of the month 月底 yuèdǐ end of the month 不到 búdào less than 左右 zuǒyòu approximately / or so 大约 dàyuē roughly / about