1<?xml version="1.0" encoding="UTF-8"?> 2 3<!--*********************************************************** 4 * 5 * Licensed to the Apache Software Foundation (ASF) under one 6 * or more contributor license agreements. See the NOTICE file 7 * distributed with this work for additional information 8 * regarding copyright ownership. The ASF licenses this file 9 * to you under the Apache License, Version 2.0 (the 10 * "License"); you may not use this file except in compliance 11 * with the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, 16 * software distributed under the License is distributed on an 17 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 18 * KIND, either express or implied. See the License for the 19 * specific language governing permissions and limitations 20 * under the License. 21 * 22 ***********************************************************--> 23 24<helpdocument version="1.0"> 25<meta> 26<topic id="textsbasicshared03030120xhp" indexer="include" status="PUBLISH"> 27<title id="tit" xml-lang="en-US">DateDiff Function [Runtime]</title> 28<filename>/text/sbasic/shared/03030120.xhp</filename> 29</topic> 30<comment>DateDiff</comment> 31</meta> 32<body> 33<section id="datediff"> 34<bookmark xml-lang="en-US" branch="index" id="bm_id6134830"><bookmark_value>DateDiff function</bookmark_value> 35</bookmark> 36<paragraph role="heading" id="par_idN10542" xml-lang="en-US" level="1" l10n="NEW"><link href="text/sbasic/shared/03030120.xhp">DateDiff Function [Runtime]</link></paragraph> 37<paragraph role="paragraph" id="par_idN10546" xml-lang="en-US" l10n="NEW">Returns the number of date intervals between two given date values.</paragraph> 38</section> 39<paragraph role="heading" id="par_idN10549" xml-lang="en-US" level="2" l10n="NEW">Syntax:</paragraph> 40<paragraph role="paragraph" id="par_idN10648" xml-lang="en-US" l10n="NEW">DateDiff (Add, Date1, Date2 [, Week_start [, Year_start]])</paragraph> 41<paragraph role="heading" id="par_idN1064B" xml-lang="en-US" level="2" l10n="NEW">Return value:</paragraph> 42<paragraph role="paragraph" id="par_idN1064F" xml-lang="en-US" l10n="NEW">A number.</paragraph> 43<paragraph role="heading" id="par_idN10652" xml-lang="en-US" level="2" l10n="NEW">Parameters:</paragraph> 44<paragraph role="paragraph" id="par_idN10656" xml-lang="en-US" l10n="NEW"> 45<emph>Add</emph> - A string expression from the following table, specifying the date interval.</paragraph> 46<embed href="text/sbasic/shared/03030110.xhp#datetable"/> 47<paragraph role="paragraph" id="par_idN10664" xml-lang="en-US" l10n="NEW"> 48<emph>Date1, Date2</emph> - The two date values to be compared.</paragraph> 49<section id="weekyear"> 50<paragraph role="paragraph" id="par_idN1066A" xml-lang="en-US" l10n="NEW"> 51<emph>Week_start</emph> - An optional parameter that specifies the starting day of a week. </paragraph> 52<table id="tbl_id8356883"> 53<tablerow> 54<tablecell colspan="" rowspan=""> 55<paragraph role="tablehead" id="par_idN1067A" xml-lang="en-US" l10n="NEW">Week_start value</paragraph> 56</tablecell> 57<tablecell colspan="" rowspan=""> 58<paragraph role="tablehead" id="par_idN10680" xml-lang="en-US" l10n="NEW">Explanation</paragraph> 59</tablecell> 60</tablerow> 61<tablerow> 62<tablecell colspan="" rowspan=""> 63<paragraph role="tablecontent" id="par_idN10687" xml-lang="en-US" l10n="NEW">0</paragraph> 64</tablecell> 65<tablecell colspan="" rowspan=""> 66<paragraph role="tablecontent" id="par_idN1068D" xml-lang="en-US" l10n="NEW">Use system default value</paragraph> 67</tablecell> 68</tablerow> 69<tablerow> 70<tablecell colspan="" rowspan=""> 71<paragraph role="tablecontent" id="par_idN10694" xml-lang="en-US" l10n="NEW">1</paragraph> 72</tablecell> 73<tablecell colspan="" rowspan=""> 74<paragraph role="tablecontent" id="par_idN1069A" xml-lang="en-US" l10n="NEW">Sunday (default)</paragraph> 75</tablecell> 76</tablerow> 77<tablerow> 78<tablecell colspan="" rowspan=""> 79<paragraph role="tablecontent" id="par_idN106A1" xml-lang="en-US" l10n="NEW">2</paragraph> 80</tablecell> 81<tablecell colspan="" rowspan=""> 82<paragraph role="tablecontent" id="par_idN106A7" xml-lang="en-US" l10n="NEW">Monday</paragraph> 83</tablecell> 84</tablerow> 85<tablerow> 86<tablecell colspan="" rowspan=""> 87<paragraph role="tablecontent" id="par_idN106AE" xml-lang="en-US" l10n="NEW">3</paragraph> 88</tablecell> 89<tablecell colspan="" rowspan=""> 90<paragraph role="tablecontent" id="par_idN106B4" xml-lang="en-US" l10n="NEW">Tuesday</paragraph> 91</tablecell> 92</tablerow> 93<tablerow> 94<tablecell colspan="" rowspan=""> 95<paragraph role="tablecontent" id="par_idN106BB" xml-lang="en-US" l10n="NEW">4</paragraph> 96</tablecell> 97<tablecell colspan="" rowspan=""> 98<paragraph role="tablecontent" id="par_idN106C1" xml-lang="en-US" l10n="NEW">Wednesday</paragraph> 99</tablecell> 100</tablerow> 101<tablerow> 102<tablecell colspan="" rowspan=""> 103<paragraph role="tablecontent" id="par_idN106C8" xml-lang="en-US" l10n="NEW">5</paragraph> 104</tablecell> 105<tablecell colspan="" rowspan=""> 106<paragraph role="tablecontent" id="par_idN106CE" xml-lang="en-US" l10n="NEW">Thursday</paragraph> 107</tablecell> 108</tablerow> 109<tablerow> 110<tablecell colspan="" rowspan=""> 111<paragraph role="tablecontent" id="par_idN106D5" xml-lang="en-US" l10n="NEW">6</paragraph> 112</tablecell> 113<tablecell colspan="" rowspan=""> 114<paragraph role="tablecontent" id="par_idN106DB" xml-lang="en-US" l10n="NEW">Friday</paragraph> 115</tablecell> 116</tablerow> 117<tablerow> 118<tablecell colspan="" rowspan=""> 119<paragraph role="tablecontent" id="par_idN106E2" xml-lang="en-US" l10n="NEW">7</paragraph> 120</tablecell> 121<tablecell colspan="" rowspan=""> 122<paragraph role="tablecontent" id="par_idN106E8" xml-lang="en-US" l10n="NEW">Saturday</paragraph> 123</tablecell> 124</tablerow> 125</table> 126<paragraph role="paragraph" id="par_idN106EB" xml-lang="en-US" l10n="NEW"> 127<emph>Year_start</emph> - An optional parameter that specifies the starting week of a year. </paragraph> 128<table id="tbl_id1173436"> 129<tablerow> 130<tablecell colspan="" rowspan=""> 131<paragraph role="tablehead" id="par_idN106FB" xml-lang="en-US" l10n="NEW">Year_start value</paragraph> 132</tablecell> 133<tablecell colspan="" rowspan=""> 134<paragraph role="tablehead" id="par_idN10701" xml-lang="en-US" l10n="NEW">Explanation</paragraph> 135</tablecell> 136</tablerow> 137<tablerow> 138<tablecell colspan="" rowspan=""> 139<paragraph role="tablecontent" id="par_idN10708" xml-lang="en-US" l10n="NEW">0</paragraph> 140</tablecell> 141<tablecell colspan="" rowspan=""> 142<paragraph role="tablecontent" id="par_idN1070E" xml-lang="en-US" l10n="NEW">Use system default value</paragraph> 143</tablecell> 144</tablerow> 145<tablerow> 146<tablecell colspan="" rowspan=""> 147<paragraph role="tablecontent" id="par_idN10715" xml-lang="en-US" l10n="NEW">1</paragraph> 148</tablecell> 149<tablecell colspan="" rowspan=""> 150<paragraph role="tablecontent" id="par_idN1071B" xml-lang="en-US" l10n="NEW">Week 1 is the week with January, 1st (default)</paragraph> 151</tablecell> 152</tablerow> 153<tablerow> 154<tablecell colspan="" rowspan=""> 155<paragraph role="tablecontent" id="par_idN10722" xml-lang="en-US" l10n="NEW">2</paragraph> 156</tablecell> 157<tablecell colspan="" rowspan=""> 158<paragraph role="tablecontent" id="par_idN10728" xml-lang="en-US" l10n="NEW">Week 1 is the first week containing four or more days of that year</paragraph> 159</tablecell> 160</tablerow> 161<tablerow> 162<tablecell colspan="" rowspan=""> 163<paragraph role="tablecontent" id="par_idN1072F" xml-lang="en-US" l10n="NEW">3</paragraph> 164</tablecell> 165<tablecell colspan="" rowspan=""> 166<paragraph role="tablecontent" id="par_idN10735" xml-lang="en-US" l10n="NEW">Week 1 is the first week containing only days of the new year</paragraph> 167</tablecell> 168</tablerow> 169</table> 170</section> 171<paragraph role="heading" id="par_idN10738" xml-lang="en-US" level="2" l10n="NEW">Example:</paragraph> 172<paragraph role="code" id="par_idN1073C" xml-lang="en-US" l10n="NEW">Sub example_datediff</paragraph> 173<paragraph role="code" id="par_idN1073F" xml-lang="en-US" l10n="NEW">msgbox DateDiff("d", "1/1/2005", "12/31/2005")</paragraph> 174<paragraph role="code" id="par_idN10742" xml-lang="en-US" l10n="NEW">End Sub</paragraph> 175</body> 176</helpdocument> 177