Date & Time Functions

These spreadsheet functions are used for inserting and editing dates and times.

​​ដើម្បី​ប្រើ​​បញ្ជា​នេះ...

Insert - Function - Category Date & Time


note

The functions whose names end with _ADD or _EXCEL2003 return the same results as the corresponding Microsoft Excel 2003 functions without the suffix. Use the functions without suffix to get results based on international standards.


LibreOffice internally handles a date/time value as a numerical value. If you assign the numbering format "Number" to a date or time value, it is converted to a number. For example, 01/01/2000 12:00 PM, converts to 36526.5. The value preceding the decimal point corresponds to the date; the value following the decimal point corresponds to the time. If you do not want to see this type of numerical date or time representation, change the number format (date or time) accordingly. To do this, select the cell containing the date or time value, call its context menu and select Format Cells. The Numbers tab page contains the functions for defining the number format.

គោល​កាលបរិច្ឆេទ​សម្រាប់​ថ្ងៃ​សូន្យ

កាលបរិច្ឆេទ គឺ​ត្រូវបាន​គណនា​ជា​អុហ្វសិត ពី​ថ្ងៃ​សូន្យ​ដែលជា​ថ្ងៃ​ចាប់ផ្ដើម ។ អ្នកអាច​កំណត់​ថ្ងៃ​សូន្យ ដែលជា​ថ្ងៃមួយ​ក្នុង​ចំណោម ៖

គោល​កាលបរិច្ឆេទ

ប្រើ

'12/30/1899'

(លំនាំដើម)

'01/01/1900'

(ប្រើ StarCalc 1.0 មុន)

'01/01/1904'

(ប្រើកម្មវិធី Apple)


ជ្រើស​ - LibreOffice Calc - គណនា​​ ដើម្បី​ជ្រើស​គោល​កាល​បរិច្ឆេទ​ ។

warning

នៅពេល​ដែលអ្នក​ចម្លង និង​បិទភ្ជាប់​ក្រឡា​ដែលមាន​តម្លៃកាលបរិច្ឆេទ រវាង​សៀវភៅ​បញ្ជី​ផ្សេងគ្នា ឯកសារ​សៀវភៅ​បញ្ជី​ទាំងពី ត្រូវ​តែត្រូវបាន​កំណត់​គោល​កាលបរិច្ឆេទ​ដូចគ្នា ។ ប្រសិន​បើ​គោល​កាលបរិច្ឆេទ​ខុសគ្នា នោះ​តម្លៃ​កាលបរិច្ឆេទ​ដែលបាន​បង្ហាញ នឹង​ផ្លាស់ប្ដូរ !


ឆ្នាំ ពីរខ្ទង់

In - LibreOffice - General you find the area Year (two digits). This sets the period for which two-digit information applies. Note that changes made here have an effect on some of the following functions.

note

When entering dates as part of formulas, slashes or dashes used as date separators are interpreted as arithmetic operators. Therefore, dates entered in this format are not recognized as dates and result in erroneous calculations. To keep dates from being interpreted as parts of formulas use the DATE function, for example, DATE(1954;7;20), or place the date in quotation marks and use the ISO 8601 notation, for example, "1954-07-20". Avoid using locale dependent date formats such as "07/20/54", the calculation may produce errors if the document is loaded under different locale settings.


tip

Unambiguous conversion is possible for ISO 8601 dates and times in their extended formats with separators. If a #VALUE! error occurs, then unselect Generate #VALUE! error in - LibreOffice Calc - Formula, button Details... in section "Detailed Calculation Settings", Conversion from text to number list box.


note

Time zone information is not used in Date and Time functions and cells.


អនុគមន៍

Date & Time Functions

DATE

[text/scalc/01/func_datedif.xhp#datedif not found].

DATEVALUE

DAY

DAYS

DAYS360

EASTERSUNDAY

EDATE

EOMONTH

HOUR

[text/scalc/01/func_isoweeknum.xhp#isoweeknum not found].

MINUTE

MONTH

NETWORKDAYS

NETWORKDAYS.INTL

NOW

SECOND

TIME

TIMEVALUE

TODAY

WEEKDAY

WEEKNUM

WEEKNUM_ADD

[text/scalc/01/func_weeknum_ooo.xhp#weeknum_ooo not found].

WORKDAY

WORKDAY.INTL

YEAR

YEARFRAC

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