Looker Studio Function: Looker Studio UNIX_DATE Complete Guide with Examples : Use case
Category: DATE function
The UNIX_DATE function in Looker Studio converts a normal calendar date into a UNIX timestamp (also known as epoch time). A UNIX timestamp represents the number of days since January 1, 1970, which is widely used in databases, web tracking systems, and analytics data processing.
This function is extremely useful when preparing data for integrations, comparisons with external systems, or converting standard date formats into timestamp-based values.
Purpose of the UNIX_DATE Function
1. Convert calendar dates to UNIX format
Converts date values into UNIX timestamp format for processing or API compatibility
2.Standardize date formats
Helps align inconsistent date formats across multiple data sources
3. Enable numeric date comparison
Makes calculations easier when working with time differences or event sequencing
Why Use UNIX_DATE in Looker Studio?
Key Benefits & Use Cases
✔ Event tracking & digital analytics – Convert action dates into timestamp numbers
✔ System integration – Many APIs store time as UNIX values
✔ Time difference calculations – Easy to compare numeric timestamps
✔ Sorting & sequencing – Order dataset by timestamp for historical pattern review
UNIX_DATE( date_expression )
| Parameter | Type | Description |
|---|---|---|
| date_expression | Date | Standard date field to be converted |
How the UNIX_DATE Function Works?
The function calculates how many days have passed from 01-01-1970 to the provided date and returns that value as a UNIX timestamp. The result is numeric and can be used for mathematical operations, lag calculations, and backend processing.
When should use the UNIX_DATE Function Work?
Use this function if:
Your data source needs timestamp values instead of calendar dates
You are merging datasets where timestamps are required
You are comparing data across systems using UNIX format
You need to calculate days between events or durations
It converts readable calendar dates into UNIX timestamp numeric format to enable easier comparison, sorting, and integration with timestamp-based systems.
Only if converted first. Use CAST(field AS DATE) before applying UNIX_DATE.
No. It preserves exact day-level accuracy.
Yes. It enables duration calculations such as time between signup and first purchase.
Yes. It helps when visualizing performance over time or ordering events chronologically.
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