Google Looker Studio : Date Function
Google Looker Studio Function: Date Function Category: Date Functions Google Looker Studio Date Functions allow users to effectively manage and analyze date and time data within reports. These functions enable...
Category: Date Functions
Google Looker Studio Date Functions allow users to effectively manage and analyze date and time data within reports. These functions enable data filtering, date formatting, time-based comparisons, and custom date calculations. Common uses include calculating date differences, extracting specific date parts (like year or month), and converting strings to date formats. Functions like TODAY, DATE_DIFF, and FORMAT_DATETIME help automate and customize reporting. With enhanced flexibility and precision, date functions support dynamic dashboards and insightful time-based analysis, improving both data storytelling and decision-making.
Purpose of Date Functions
1. Data Summarisation
Date functions help summarize large datasets by grouping data by day, week, month, quarter, or year—making patterns easier to analyze.
2. Enhanced Data Analytics
These functions enable deeper analysis by allowing users to calculate time differences, identify trends over time, and compare performance across periods.
3. Customisable Reporting
You can build dynamic and interactive reports using date functions, such as showing only current month data or auto-updating reports using TODAY or CURRENT_DATE.
| Function Name | Description (20–25 words) | Syntax |
|---|---|---|
| CURRENT_DATE | Returns the current date in the default timezone, useful for dynamic filters and daily comparisons. | CURRENT_DATE() |
| CURRENT_DATETIME | Returns the current date and time based on the default timezone, used for real-time analysis. | CURRENT_DATETIME() |
| DATE | Converts a datetime or number into a date for standardized formatting and analysis. | DATE(expression) |
| DATE_DIFF | Calculates the number of days between two dates, often used for age or duration analysis. | DATE_DIFF(date1, date2) |
| DATE_FROM_UNIX_DATE | Converts a Unix timestamp (days since 1970-01-01) into a readable date format. | DATE_FROM_UNIX_DATE(unix_date) |
| DATETIME | Converts a date or string to a full datetime format (date + time). | DATETIME(expression) |
| DATETIME_ADD | Adds a time interval (like days or months) to a datetime value for projections. | DATETIME_ADD(datetime, INTERVAL n unit) |
| DATETIME_DIFF | Finds the difference between two datetime values in a specified unit (e.g., day, hour). | DATETIME_DIFF(datetime1, datetime2, unit) |
| DATETIME_SUB | Subtracts a time interval from a datetime to calculate past dates. | DATETIME_SUB(datetime, INTERVAL n unit) |
| DATETIME_TRUNC | Truncates a datetime to a specific part like month or year for grouping. | DATETIME_TRUNC(datetime, part) |
| DAY | Extracts the day of the month (1–31) from a given date. | DAY(date) |
| EXTRACT | Extracts a specific component (like year or month) from a date or datetime. | EXTRACT(part FROM date) |
| FORMAT_DATETIME | Converts datetime into a string in a specified format, useful for display. | FORMAT_DATETIME(format, datetime) |
| HOUR | Extracts the hour (0–23) from a datetime value, useful in time-based analysis. | HOUR(datetime) |
| MINUTE | Extracts the minute (0–59) from a datetime value. | MINUTE(datetime) |
| MONTH | Returns the month number (1–12) from a given date or datetime. | MONTH(date) |
| PARSE_DATE | Parses a string into a date using a specific format pattern. | PARSE_DATE(format, text) |
| PARSE_DATETIME | Converts a string to a datetime based on a custom format. | PARSE_DATETIME(format, text) |
| QUARTER | Extracts the quarter (1 to 4) of the year from a date. | QUARTER(date) |
| SECOND | Returns the second (0–59) from a datetime, useful in detailed time tracking. | SECOND(datetime) |
| TODATE | Converts strings or numeric inputs to a date for consistency. | TODATE(expression) |
| TODAY | Returns today’s date, updated in real-time, perfect for dynamic dashboards. | TODAY() |
| UNIX_DATE | Converts a date into the number of days since January 1, 1970. | UNIX_DATE(date) |
| WEEK | Returns the ISO week number of the year from a date. | WEEK(date) |
| WEEKDAY | Returns the day of the week (1 = Sunday through 7 = Saturday) from a date. | WEEKDAY(date) |
| YEAR | Extracts the year from a date or datetime value. | YEAR(date) |
| YEARWEEK | Combines the year and ISO week number into one value (e.g., 202518). | YEARWEEK(date) |
Date functions allow users to manipulate and analyze date and time data, enabling effective reporting and visualization.
The CURRENT_DATE function returns the current date in the default timezone, useful for dynamic date-based calculations.
DATE_DIFF calculates the difference between two dates, returning the result in days, aiding in time-based analysis.
Yes, functions like EXTRACT allow you to retrieve specific components of a date, such as year, month, or day.
The FORMAT_DATETIME function enables you to format a datetime value into a string, customizing the display as needed.