我正在嘗試從 DateTime 示例 2022-02-26 10:00:00 UTC 中提取時間，我只想從中回傳 10:00:00。請幫助使用 Rails v.6
uj5u.com熱心網友回復：
通過使用strftime方法并將"%H:%M:%S"格式傳遞給它
%H - Hour of the day, 24-hour clock, zero-padded (00..23)
%k - Hour of the day, 24-hour clock, blank-padded ( 0..23)
%I - Hour of the day, 12-hour clock, zero-padded (01..12)
%M - Minute of the hour (00..59)
%S - Second of the minute (00..59)
%P - Meridian indicator, lowercase (``am'' or ``pm'')
%p - Meridian indicator, uppercase (``AM'' or ``PM'')
date = DateTime.now
date.strftime("%H:%M:%S")
# Output 07:44:10
或者，如果您需要將所有段分開，您可以像這樣提取小時、分鐘和秒：
date = DateTime.now
hour = date.hour # 07
minute = date.minute # 44
second = date.second # 10
# and you can interpolate
time = "#{hour}:#{minute}:#{second}"
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