# Time Configuration
Under **Settings → Application Settings → Time Configuration,** admins can control how Tellius interprets and interacts with time-based data across queries, insights, and calendars (especially when dealing with non-standard or fiscal calendars).
Time Configuration
### Weekend Date Configuration
**Use weekend date by default**
If enabled, Tellius will use the weekend date as the reference point for time-based calculations (e.g., weekly comparisons, trending by weekends). This is helpful for businesses whose data processing or reporting aligns with weekend cycles.
### Time Slices Reference Point
**Use current system date?**
Tellius typically uses the maximum date in your dataset as the default reference point when calculating dynamic time slices (e.g., “last 7 days” or “previous month”).\
If enabled, Tellius will use the **current system date** instead.
{% hint style="info" %}
Enabling this may lead to unexpected results if your dataset is not updated daily—such as showing empty results for recent periods.
{% endhint %}
### Include Current Time
**Include current time grain (e.g., day) in last X time queries**
This setting controls whether queries for "last X time" (like last 7 days) should include the current day/hour/week, depending on the selected time grain.
* If enabled, today is included in calculations.
* If disabled, queries will exclude the in-progress current period.
### Calendars
Tellius supports custom calendar management, helping users create fiscal calendars. The list of all available calendars will be displayed here. Click on the three-dot menu to manage each calendar. For more details, check out [this](https://help.tellius.com/tellius-documentation/data/preparing-your-business-views/setting-up-custom-calendars#how-to-set-up-custom-calendars) page.
Calendar management
The calendar marked as the default one will be indicated as **"Default"**. Click on **Add custom calendar** to create a new calendar. For more details, check out [this](https://help.tellius.com/tellius-documentation/data/preparing-your-business-views/setting-up-custom-calendars#how-to-set-up-custom-calendars) page.
