LabVIEW includes time-specific format codes that define how to format an output string from input data that includes time information.

Use these format codes in the following places:

  • Within the <Embedded Time Format> syntax element of format string inputs to formatting functions. Embedded Time Format supports different format codes depending on which time conversion code that you use: absolute time (T) or relative time (t).

    To create a valid Embedded Time Format element for formatting functions, surround time-specific format codes with < and >.

  • The time format string input to the Format Date/Time String function.

    For the time format string input to Format Date/Time String, you do not need to surround time format codes with < and >.

Table 7. Time Format Codes
Format Code Embedded Time Format Compatibility: Absolute Time (T) or Relative Time (t) Value
%a Absolute time Abbreviated weekday name (for example, Wed)
%A Absolute time Full weekday name (for example, Wednesday)
%b Absolute time Abbreviated month name (for example, Jun)
%B Absolute time Full month name (for example, June)
%c Absolute time Locale-specific default date and time
%d
  • Absolute time
  • Relative time
 Day of month (01–31)
%H
  • Absolute time
  • Relative time
 Hour (24-hour clock) (00–23)
%I Absolute time Hour (12-hour clock) (01–12)
%j Absolute time Day number of the year (001–366)
%m Absolute time Month number (01–12)
%M
  • Absolute time
  • Relative time
 Minute (00–59)
%p Absolute time AM or PM flag
%S
  • Absolute time
  • Relative time
 Second (00–59)
%digitu
  • Absolute time
  • Relative time
 Fractional seconds with digit precision, where digit is a number. This code accounts for the decimal point in strings that include fractional seconds. When you use this code, you do not need to add a literal period to the time format string.
%U Absolute time Week number of the year (00–53), with the first Sunday as the first day of week one; 00 represents the first week
%w Absolute time Weekday as a decimal number (0–6), with 0 representing Sunday
%W
  • Absolute time
  • Relative time
 Week number of the year (00–53), with the first Monday as the first day of week one; 00 represents the first week
%x Absolute time Locale-specific date
%.1x Absolute time Long date format
%.2x Absolute time Abbreviated long date format
%X Absolute time Locale-specific time
%y Absolute time Year within century (00–99); when you scan the numbers, numbers (00–68) represent years in the twenty-first century (2000–2068) and numbers (69–99) represent years in the twentieth century (1969–1999)
%Y Absolute time Year, including the century (for example, 1997)
%z Absolute time Difference between locale time and universal time (HH:MM:SS)
%Z Absolute time Time zone name or abbreviation, depending on the operating system locale settings