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"> 35<bookmark_value>DateDiff function</bookmark_value> 36</bookmark> 37<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> 38<paragraph role="paragraph" id="par_idN10546" xml-lang="en-US" l10n="NEW">Returns the number of date intervals between two given date values.</paragraph> 39</section> 40<paragraph role="heading" id="par_idN10549" xml-lang="en-US" level="2" l10n="NEW">Syntax:</paragraph> 41<paragraph role="paragraph" id="par_idN10648" xml-lang="en-US" l10n="NEW">DateDiff (Add, Date1, Date2 [, Week_start [, Year_start]])</paragraph> 42<paragraph role="heading" id="par_idN1064B" xml-lang="en-US" level="2" l10n="NEW">Return value:</paragraph> 43<paragraph role="paragraph" id="par_idN1064F" xml-lang="en-US" l10n="NEW">A number.</paragraph> 44<paragraph role="heading" id="par_idN10652" xml-lang="en-US" level="2" l10n="NEW">Parameters:</paragraph> 45<paragraph role="paragraph" id="par_idN10656" xml-lang="en-US" l10n="NEW"> 46<emph>Add</emph> - A string expression from the following table, specifying the date interval.</paragraph> 47<embed href="text/sbasic/shared/03030110.xhp#datetable"/> 48<paragraph role="paragraph" id="par_idN10664" xml-lang="en-US" l10n="NEW"> 49<emph>Date1, Date2</emph> - The two date values to be compared.</paragraph> 50<section id="weekyear"> 51<paragraph role="paragraph" id="par_idN1066A" xml-lang="en-US" l10n="NEW"> 52<emph>Week_start</emph> - An optional parameter that specifies the starting day of a week.</paragraph> 53<table id="tbl_id8356883"> 54<tablerow> 55<tablecell colspan="" rowspan=""> 56<paragraph role="tablehead" id="par_idN1067A" xml-lang="en-US" l10n="NEW">Week_start value</paragraph> 57</tablecell> 58<tablecell colspan="" rowspan=""> 59<paragraph role="tablehead" id="par_idN10680" xml-lang="en-US" l10n="NEW">Explanation</paragraph> 60</tablecell> 61</tablerow> 62<tablerow> 63<tablecell colspan="" rowspan=""> 64<paragraph role="tablecontent" id="par_idN10687" xml-lang="en-US" l10n="NEW">0</paragraph> 65</tablecell> 66<tablecell colspan="" rowspan=""> 67<paragraph role="tablecontent" id="par_idN1068D" xml-lang="en-US" l10n="NEW">Use system default value</paragraph> 68</tablecell> 69</tablerow> 70<tablerow> 71<tablecell colspan="" rowspan=""> 72<paragraph role="tablecontent" id="par_idN10694" xml-lang="en-US" l10n="NEW">1</paragraph> 73</tablecell> 74<tablecell colspan="" rowspan=""> 75<paragraph role="tablecontent" id="par_idN1069A" xml-lang="en-US" l10n="NEW">Sunday (default)</paragraph> 76</tablecell> 77</tablerow> 78<tablerow> 79<tablecell colspan="" rowspan=""> 80<paragraph role="tablecontent" id="par_idN106A1" xml-lang="en-US" l10n="NEW">2</paragraph> 81</tablecell> 82<tablecell colspan="" rowspan=""> 83<paragraph role="tablecontent" id="par_idN106A7" xml-lang="en-US" l10n="NEW">Monday</paragraph> 84</tablecell> 85</tablerow> 86<tablerow> 87<tablecell colspan="" rowspan=""> 88<paragraph role="tablecontent" id="par_idN106AE" xml-lang="en-US" l10n="NEW">3</paragraph> 89</tablecell> 90<tablecell colspan="" rowspan=""> 91<paragraph role="tablecontent" id="par_idN106B4" xml-lang="en-US" l10n="NEW">Tuesday</paragraph> 92</tablecell> 93</tablerow> 94<tablerow> 95<tablecell colspan="" rowspan=""> 96<paragraph role="tablecontent" id="par_idN106BB" xml-lang="en-US" l10n="NEW">4</paragraph> 97</tablecell> 98<tablecell colspan="" rowspan=""> 99<paragraph role="tablecontent" id="par_idN106C1" xml-lang="en-US" l10n="NEW">Wednesday</paragraph> 100</tablecell> 101</tablerow> 102<tablerow> 103<tablecell colspan="" rowspan=""> 104<paragraph role="tablecontent" id="par_idN106C8" xml-lang="en-US" l10n="NEW">5</paragraph> 105</tablecell> 106<tablecell colspan="" rowspan=""> 107<paragraph role="tablecontent" id="par_idN106CE" xml-lang="en-US" l10n="NEW">Thursday</paragraph> 108</tablecell> 109</tablerow> 110<tablerow> 111<tablecell colspan="" rowspan=""> 112<paragraph role="tablecontent" id="par_idN106D5" xml-lang="en-US" l10n="NEW">6</paragraph> 113</tablecell> 114<tablecell colspan="" rowspan=""> 115<paragraph role="tablecontent" id="par_idN106DB" xml-lang="en-US" l10n="NEW">Friday</paragraph> 116</tablecell> 117</tablerow> 118<tablerow> 119<tablecell colspan="" rowspan=""> 120<paragraph role="tablecontent" id="par_idN106E2" xml-lang="en-US" l10n="NEW">7</paragraph> 121</tablecell> 122<tablecell colspan="" rowspan=""> 123<paragraph role="tablecontent" id="par_idN106E8" xml-lang="en-US" l10n="NEW">Saturday</paragraph> 124</tablecell> 125</tablerow> 126</table> 127<paragraph role="paragraph" id="par_idN106EB" xml-lang="en-US" l10n="NEW"> 128<emph>Year_start</emph> - An optional parameter that specifies the starting week of a year.</paragraph> 129<table id="tbl_id1173436"> 130<tablerow> 131<tablecell colspan="" rowspan=""> 132<paragraph role="tablehead" id="par_idN106FB" xml-lang="en-US" l10n="NEW">Year_start value</paragraph> 133</tablecell> 134<tablecell colspan="" rowspan=""> 135<paragraph role="tablehead" id="par_idN10701" xml-lang="en-US" l10n="NEW">Explanation</paragraph> 136</tablecell> 137</tablerow> 138<tablerow> 139<tablecell colspan="" rowspan=""> 140<paragraph role="tablecontent" id="par_idN10708" xml-lang="en-US" l10n="NEW">0</paragraph> 141</tablecell> 142<tablecell colspan="" rowspan=""> 143<paragraph role="tablecontent" id="par_idN1070E" xml-lang="en-US" l10n="NEW">Use system default value</paragraph> 144</tablecell> 145</tablerow> 146<tablerow> 147<tablecell colspan="" rowspan=""> 148<paragraph role="tablecontent" id="par_idN10715" xml-lang="en-US" l10n="NEW">1</paragraph> 149</tablecell> 150<tablecell colspan="" rowspan=""> 151<paragraph role="tablecontent" id="par_idN1071B" xml-lang="en-US" l10n="NEW">Week 1 is the week with January, 1st (default)</paragraph> 152</tablecell> 153</tablerow> 154<tablerow> 155<tablecell colspan="" rowspan=""> 156<paragraph role="tablecontent" id="par_idN10722" xml-lang="en-US" l10n="NEW">2</paragraph> 157</tablecell> 158<tablecell colspan="" rowspan=""> 159<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> 160</tablecell> 161</tablerow> 162<tablerow> 163<tablecell colspan="" rowspan=""> 164<paragraph role="tablecontent" id="par_idN1072F" xml-lang="en-US" l10n="NEW">3</paragraph> 165</tablecell> 166<tablecell colspan="" rowspan=""> 167<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> 168</tablecell> 169</tablerow> 170</table> 171</section> 172<paragraph role="heading" id="par_idN10738" xml-lang="en-US" level="2" l10n="NEW">Example:</paragraph> 173<paragraph role="code" id="par_idN1073C" xml-lang="en-US" l10n="NEW">Sub example_datediff</paragraph> 174<paragraph role="code" id="par_idN1073F" xml-lang="en-US" l10n="NEW">msgbox DateDiff("d", "1/1/2005", "12/31/2005")</paragraph> 175<paragraph role="code" id="par_idN10742" xml-lang="en-US" l10n="NEW">End Sub</paragraph> 176</body> 177</helpdocument> 178