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上午的写法 = waktu pagi 题目是上午的时间。改成 24 小时制时，上午的小时不用加任何数，只要确定小时是两位数，分钟照抄，再在前面写 Jam。小时本来就是两位数的，直接照写。 例子：10:05 a.m. → Jam 1005。 注意：a.m. 的时间不加 12，加了就变成深夜。

morning times = waktu pagi This is a morning time. For a.m. times nothing is added to the hour: just make sure the hour has two digits, copy the minutes and write Jam in front. If the hour already has two digits, write it as it is. Example: 10:05 a.m. → Jam 1005. Watch out: never add 12 to an a.m. time, or it becomes late at night.

晚上的时间 = waktu malam 晚上属于 p.m.，改成 24 小时制要在小时上加十二，分钟保持原样，写成四位数。可以先估计：晚上的时间，24 小时制的小时一定比十八左右还大。 例子：8:30 malam → 8 加 12 得 20 → Jam 2030。 注意：没加 12 会变成早上；加完要再核对一次加法。

night times = waktu malam Night is p.m., so add 12 to the hour, keep the minutes and write four digits. Estimate first: a night-time hour in the 24-hour system is around 18 or more. Example: 8:30 malam → 8 + 12 = 20 → Jam 2030. Watch out: forgetting to add 12 turns night into morning, so check your addition again.

半夜十二点多 = 12:xx a.m. 写着 12 而且是 a.m.，表示刚过半夜，一天才刚刚开始。24 小时制里这一段时间的小时写成 00，分钟照抄，一样要写满四个数字。 例子：12:05 a.m. → Jam 0005。 注意：24 小时制最大到 Jam 2359，没有 24 开头的时间；中午十二点多才用 12 开头。

just after midnight = 12:xx a.m. 12 with a.m. means just after midnight, when the day has only just begun. In the 24-hour system the hour in this part of the day is 00; copy the minutes and still write four digits. Example: 12:05 a.m. → Jam 0005. Watch out: the 24-hour system stops at Jam 2359 and never starts with 24; times starting with 12 are around noon.

一点以后 = selepas pukul 1 petang 这个时间的小时比十二大，已经过了中午。方法：两位数的小时减去十二，分钟照抄，写成“时:分”，再写 p.m.。 例子：Jam 1410 → 14 − 12 = 2 → 2:10 p.m.。 注意：减完之后还要写对时段，过了中午一定是 p.m.，不能写 a.m.。

after 1 p.m. = selepas pukul 1 petang The hour is more than 12, so the time is after noon. Subtract 12 from the two-digit hour, copy the minutes, write hour:minutes and add p.m. Example: Jam 1410 → 14 − 12 = 2 → 2:10 p.m. Watch out: after subtracting, still choose the right part of the day; after noon it is always p.m., never a.m.

清晨的时间 = waktu awal pagi 小时是 05，比十二小，是中午以前的时间。方法：去掉小时前面的 0，加上冒号分开时和分，最后写 a.m.。 例子：Jam 0610 → 6:10 a.m.。 注意：12 小时制的小时只有 1 到 12，不会出现十三以上的数字；中午以前也不能写 p.m.。

early morning = waktu awal pagi The hour is 05, less than 12, so the time is before noon. Drop the 0 in front of the hour, put a colon between hours and minutes, and write a.m. Example: Jam 0610 → 6:10 a.m. Watch out: in the 12-hour system the hour is only 1 to 12, never 13 or more, and a time before noon is never p.m.

晚上八点前后 = waktu malam 题目的小时是两位数，而且大于十二，所以用“减 12”的方法：先算小时减十二，分钟照抄（包括前面的 0），再写 p.m.。算完可以加回 12 验算。 例子：Jam 2130 → 21 − 12 = 9 → 9:30 p.m.。 注意：两位数的小时要整个减，不能只拿个位数当作小时，也不要多减或少减。

evening times = waktu malam The hour has two digits and is more than 12, so subtract 12: work out the hour, copy the minutes including any leading 0, and write p.m. Add 12 back to check. Example: Jam 2130 → 21 − 12 = 9 → 9:30 p.m. Watch out: subtract from the whole two-digit hour, not just its last digit, and do not take away too much or too little.