Installation

Installation

The import line

//@version=6
indicator("My indicator")
import The_Peaceful_Lizard/std_time/1 as t

The alias is yours to choose. Every example in this wiki uses t, and short is worth something here because you will type it constantly.

Requirements

Pine v6 only. The library uses enums, user-defined types and methods, none of which exist before v6.

Works from any script kind. An indicator, a strategy or another library can all import it.

Every imported name takes the alias

This catches everyone once, and the error message does not mention imports:

t.DateTime d = t.new_datetime(2025, 6, 15)   // correct
DateTime   d = t.new_datetime(2025, 6, 15)   // "{typeKeyword}" is not a valid type keyword

Types, enums and enum members all take it: t.DateTime, t.Session, t.Exchange.NYSE, t.Overflow.REJECT, t.Weekday.FRIDAY.

The signatures on the reference pages are shown as the library declares them, where DateTime is unqualified and correct. Copying a signature into your own script is the usual way to hit this.

Compiled size

An import does not spend your script's token budget. TradingView compiles a library as its own unit, and importing one does not copy its code into the importing script, so std_time's own weight is not subtracted from yours.

The library's own weight is about 92,000 compiled tokens, measured against the 100,256 cap when the library itself was published. That is a fact about this library's publication, not a tax on yours.

Two things that do apply to your script:

• The server-side syntax check does not enforce the token cap. A script can check clean and still fail to add to the chart.
• String data costs two compiled tokens per character, so your own constant tables are the first place to look if you run out.

Performance and Limits has the detail.

Check it works

//@version=6
indicator("std_time smoke test")
import The_Peaceful_Lizard/std_time/1 as t

t.DateTime d = t.unix_to_date_zone(time, t.Zone.NEW_YORK)
plot(d.is_trading_day(t.Exchange.NYSE) ? 1 : 0)

On a US equity chart that plots 1 on trading days and 0 on holidays. If it compiles and plots, the import resolved and the calendar is answering.

Where to go next

• New to the model: Core Concepts, then the numbered run in the sidebar.
• Coming from Pine's built-ins: Migrating from Pine Built-ins.
• Looking for a specific function: API Index.

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