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オランダにおける日付と時刻の表記では、日付は日－月－年（DMY）の形式で記録されます（例：1999年12月31日、31-12-1999、31/12/'99）。時刻は24時間形式で表記されます（例：23:59）。
オランダでは、日付はヨーロッパの他の地域や世界の大半の地域と同様に、リトルエンディアンの「日–月–年」（DMY）の形式で表記され、通常はハイフン（-）が区切り文字として使用されますが、スラッシュ（/）も使用されます。日付は先頭にゼロがある場合とない場合の両方で表記されますが、先頭にゼロがない場合の方が一般的です。非公式な文書では、文脈から世紀が推測できる場合、年をアポストロフィで短縮することがあります[ 1 ]。週は月曜日の00:00から始まります。
月と日の名称と略称は以下のとおりです（注：オランダ語では月と日の名称は小文字で表記されます）。
In written language, time is expressed in the 24-hour notation, with or without leading zero, using a full stop or colon as a separator, sometimes followed by the word uur (hour) or its abbreviationu.– for example, 22.51 uur, 9.12 u., or 09:12. In technical and scientific texts the use of the abbreviations h, min/m and s is common – for example, 17 h 03 min 16 s.[2] The use of the 12-hour clock in numeric writing is not standard practice, not even in informal writing, and writing e.g., "1.30" for 13:30 would be regarded as odd. The actual Dutch terms for a.m. and p.m. are respectively v.m. and n.m. (voormiddag and namiddag), but these are very old-fashioned and even more rare than the use of a.m. and p.m. in written language.
In spoken language, most often time is expressed in the 12-hour clock. However, "a.m." and "p.m." are never used. Instead, an apposition is added, for instance 21:00 is said as "9 uur 's avonds" (9 o'clock in the evening). Half hours are relative to the next hour – for example, 5:30 is said as "half 6". Quarter hours are expressed relative to the nearest whole hour – for example, 6:15, "kwart over 6" (quarter past six) and 6:45, "kwart voor zeven" (quarter to seven). Minutes are usually rounded off to the nearest five minutes and are expressed relative to the closest half-hour. For instance 05:35 is "5 over half 6" (literally "5 past half to 6") and 05:20 is "tien voor half 6" (literally "10 to half to 6").
When the 24-hour clock is used in spoken language, which is not quite common, usually the written form is pronounced with the hours as a number, the word "uur" (hour) followed by the minutes as a number. For example, 17:21 might be pronounced as "zeventien uur eenentwintig" (seventeen hours twenty-one). Hours over 12 are not usually combined with phrasings using "half", "quarter", "to", or "past".