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Business Logic / Control
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Types of Control Functions
An overview of the types of functions distinguished within Control.
Time Functions
day()
Returns the day of the month.

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Business Logic / Control
Endless possibilities in data processing for your projects.
- Introduction to CTRL
  An introduction to the product's own programming language Control(CTRL).
- Control Classes
  The overview of classes available in Control.
- Types of Control Functions
  An overview of the types of functions distinguished within Control.
  - 32/64 bit Functions
  - Administration of Managers, Modules and Panels - Functions
  - Alert Handling Functions
    These functions are associated with datapoints and respond to alerts and changes to alerts.
  - AlertService Functions
    These functions provide alarm shelving, suppression, and out-of-service capabilities via the AlertServiceClient class.
  - Blob Functions
  - Communication functions
  - Connection Functions
    Connection functions can be used to establish connections to alerts, datapoints and system events.
  - Crypthographic Functions
  - Database Functions
  - Datapoint Functions
  - Error Functions
  - File Functions
    File functions allow you to import, export, open, close, and manipulate files within the application. This topic describes how to use file functions and important considerations for cross-platform compatibility.
  - Graphics Functions
  - Help Viewer Functions
    Available Functions for the Help Viewer.
  - HTTP Functions
  - Input Event Recorder Functions
  - Licensing Functions
  - Mapping Functions
  - Mathematical Functions
  - MindSphere Connector Functions
  - Miscellaneous Functions
  - Multilingual Functionality
  - Project administration Functions
  - Query Functions
  - Redu/Dist Functions
  - Selection and Configuration Dialogs - Functions
  - Semaphore Functions
  - String Functions
  - Subscription-based Licensing Functions
    CONTROL functions for querying information from subscription-based licenses.
  - System Tray
  - Time Functions
    - day()
      Returns the day of the month.
    - daylightsaving()
      Checks whether the time is winter time or summer time.
    - daySecond()
      Returns the seconds of the day.
    - formatTime()
      Returns the time in a particular format.
    - formatTimeUTC()
      Returns the UTC time in a particular format.
    - getCurrentTime()
      Returns the current time.
    - hour()
      Returns the hour portion (0 to 23) of a time t.
    - makeATime()
      Returns an alert time in an internal time format incl. DP Identification.
    - makeTime()
      Returns a time or alert time in the internal time format.
    - maxTIME()
      Returns the value of the MAX_TIME constant.
    - milliSecond()
      Returns the milliseconds of a time.
    - minTIME()
      Returns the value of the MIN_TIME constant.
    - minute()
      Returns the minutes of a time.
    - month()
      Returns the month of a time.
    - period()
      Returns the seconds of a time t that have elapsed since 1.1.1970, 00:00 (UTC).
    - quarter()
      Returns the quarter portion of a time.
    - scanTimeUTC()
      Determines the local time from a UTC time string.
    - second()
      Returns the seconds part (0 ... 59) of a time t.
    - setPeriod()
      Sets t to a particular number of seconds and milliseconds.
    - setTime()
      Sets a time to the value specified in the argument.
    - timedFunc()
      Starts timed CTRL functions.
    - timeFromGMT()
      Returns the difference between local time and GMT.
    - weekDay()
      Returns the weekday of a time.
    - year()
      Returns the year of a time.
    - yearDay()
      Returns the day of a time as a value between 1 and 366.
  - Threads Functions
  - User Administration Functions
  - Vector / Dynamic arrays - Functions
  - Waiting Control Functions
  - Window Functions
    This chapter lists all functions used to control windows and panels, such as ChildPanelOn, LayerOn, LayerOff, PanelOff, RootPanelOn, SwitchLayer, ZoomModule, and related dialog and module operations.
  - XML Control Extension Functions
- Control Graphics
- CONTROL Functions
- CtrlExtension
  The CtrlExtension allows the addition of custom C++ code.
- CTRL Debugger
  You can use the CTRL debugger to debug the Control programming language. The debugger can be used via its own panel, which also enables the monitoring and setting of variable values during the execution of a script.
- SQL in CONTROL
  The database functions enable you to quickly carry out value queries on datapoints and elements.
- WinCC OA JavaScript Manager for Node.js
  The WinCC OA JavaScript Manager for Node.js is a manager that allows for the integration of the TypeScript/JavaScript runtime environment Node.js into WinCC OA.
- API Manager
  The WinCC OA API (Application Programming Interface) offers a number of functions adding special Managers to this process control system.
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The process connection to the actual machines/sensors.
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Detailed and extensive content for special project adaptation.
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Basic information about terms and functions within the documentation.
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day()

Returns the day of the month.

Synopsis

int day( time t);

Parameters


Parameter	Meaning
t	Time

Return Value

Day as an integer.

Description

Returns the day of month (1...31) of the time t.

main()
{
  time t;
  t = makeTime(1999,8,18,13,40);
  DebugN(day(t)); // Returns 18
}

Assignment

Time function

Availability

CTRL