http://www.englishforums.com/English/GeneralEnglishGrammarQuestions/Forum12.htmAsk your questions on grammar and get your sentence checked. We answer lots of different types of general English grammar questions here.enCSMOD (Build: 3168.38637)http://www.englishforums.com/English/AtAugust31/zxknn/post.htm#489511Sun, 16 Mar 2008 10:46:33 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:489511Mister Micawber0http://www.englishforums.com/English/AtAugust31/zxknn/post.htm#489511http://www.englishforums.com/English/comments12-489511.xml.<br />There is no rule at play here-- either preposition could have been used in either position. However, the writer should have been consistent.&nbsp; Although in general English, <strong><em>at</em></strong> is unacceptable before mention of a day or date, it enjoys this specialized use in the world of finance.<div style="clear:both;"></div>http://www.englishforums.com/English/AtAugust31/zxkmx/post.htmSun, 16 Mar 2008 10:08:52 GMT946f00bb-57d3-4b7b-a9a2-059b5341af52:489495Besthunter1http://www.englishforums.com/English/AtAugust31/zxkmx/post.htmhttp://www.englishforums.com/English/comments12-489495.xmlThis sentence is quoted from my Account book:</p><p><i>The supplies account balance <b>ON</b> August 31 is $3,000, and the supplies on hand <b>AT </b>August 31 are $1,480.</i></p><p>&nbsp;=&gt; I know what they mean by ON and AT, but can anyone tell me the grammatical rule here? <br /><div style="clear:both;"></div>