---
title: "toMillis"
description: "Converts a Date object to its millisecond value elapsed since January 1, 1970, 00:00:00 UTC (GMT)"
---

# toMillis

> Converts a Date object to its millisecond value elapsed since January 1, 1970, 00:00:00 UTC (GMT)

**This function is used by Ignition's Expression language.**

## Description

Converts a date object to its millisecond value elapsed since January 1, 1970, 00:00:00 UTC (GMT).

## Syntax

`toMillis(date)`

### Parameters

| Type | Parameter | Description                               |
|------|-----------|-------------------------------------------|
| Date | `date`    | The date to convert to milliseconds since epoch time. |

### Returns

**Integer** - The number of milliseconds since January 1, 1970, 00:00:00 UTC (GMT) for the given date.

## Examples

```python title="Code Snippet"
// This will take the date Aug 22, 2017 at 14:35:25 PST and convert it to milliseconds from epoch time which is 1,500,767,134,000.
toMillis(setTime(getDate(2017, 6, 22), 16, 45, 34))
```