Millisecond / Temporal Layer

Extract millisecond component (10⁻³ seconds) from datetime values, similar to Python's datetime.microsecond/1000. Returns values from 0 to 999.

Precision comparison:

DateTime Value	Milliseconds	Note
2024-01-15 12:30:45.123	123	Full precision
2024-01-15 12:30:45.001	1	Minimum non-zero
2024-01-15 12:30:45.000	0	Exact second

Common applications:

Web response time analysis
User interaction timing
Animation frame timing
API performance monitoring
Event logging systems

Table

Transforms

[, ...]

Select

column

Datetime column with at least millisecond precision. Source should have sufficient precision for meaningful millisecond extraction. Returns 0 for lower precision inputs.

Name for the new column. If not provided, the system generates a unique name. If AsColumn matches an existing column, the existing column is replaced. The name should follow valid column naming conventions.