hoursToMilliseconds — GTM Variable Template for Time

VARIABLES › TIME

hoursToMilliseconds EXTENDED Time

Direct (.tpl) Apply (.tpl)

Converts hours to milliseconds.

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Examples

Hours to milliseconds▶ Try

INPUT

Number of Hours: 2

OUTPUT

7200000

Zero returns 0▶ Try

INPUT

Number of Hours: 0

OUTPUT

0

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GTM Configuration

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hoursToMilliseconds

Read-Only Try Live

Number of Hours

💾 The number of hours to convert to milliseconds.

Supported formats:
  ✓ Number
  ✓ String

Input Setup

Input Function (optional)

⚙️ Optional pre-processing function applied to the input before internal logic (e.g., convert object to string, normalize case). Internal transformations such as case handling will still apply afterward.

Result Handling

Output Function (optional)

⚙️ Optional function to apply to the result before returning it (e.g., str => str + ' €', val => val !== undefined for boolean conversion). Useful for chaining transformations on the output.

Number of Hours number

💡 Type any text to see the result update live

🎯 Using special value — click input to type instead

Test with:

Falsy undefined null "" empty 0 false NaN

Truthy true 42 "hello" {} empty [] empty {a:1} [1,2,3]

🔗 Result Handling — Chain Variables

Chain apply-mode variables to the output. Each variable receives the result of the previous one.

hoursToMilliseconds()

+ Chain another variable

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Related Variables

Same category: Time

→ basicDateToExtended → dateToUnixTimestamp → daysToMilliseconds → extendedDateToBasic → millisecondsToDays → millisecondsToHours → millisecondsToMinutes → millisecondsToSeconds → minutesToMilliseconds → secondsToMilliseconds → unixTimestampToDate

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Under the Hood

📜 View Implementation Code

/**
* Converts a number of hours to milliseconds.
* 
* @param {string|number} data.src - The number of hours to convert to milliseconds.
* @param {Function|string} [data.out] - Optional output handler: function to transform result or string with format.
*
* Direct-mode specific parameters:
* @param {Function} [data.pre] - Optional pre-processor function to transform src before conversion.
* 
* @returns {number|undefined} The time in milliseconds, or undefined if input is not a valid number.
*
* @framework ggLowCodeGTMKit
*/
const makeNumber = require('makeNumber');

const hoursToMilliseconds = function(timeValue) {
   const timeNum = makeNumber(timeValue);
   if (timeNum === timeNum) {
       return timeNum * 1000 * 60 * 60;
   }
   return undefined;
};

const safeFunction = fn => typeof fn === 'function' ? fn : x => x;
const out = safeFunction(data.out);

// ===============================================================================
// hoursToMilliseconds - Direct mode
// ===============================================================================
const applyCast = (castFn, value) => safeFunction(castFn)(value);
const value = applyCast(data.pre, data.src);
return out(hoursToMilliseconds(value));

// ===============================================================================
// hoursToMilliseconds() – Apply Mode
// ===============================================================================
/*
return function(value) {
  return out(hoursToMilliseconds(value));
};
*/

🧪 View Test Scenarios (5 tests)

✅ '[example] Hours to milliseconds'
✅ String number of hours - converts to milliseconds
✅ Decimal hours - converts fractional hours correctly
✅ Invalid string input - returns undefined
✅ '[example] Zero returns 0'