Description
Label the sign of a bounded whole day offset.
Date labels and intervals depend on origins, endpoint inclusion and calendar versus elapsed-time conventions. Numeric serial periods and local token formats can represent useful bookkeeping without resolving a real instant or official fiscal rule.
Label the sign of a bounded whole day offset.
When to use this tool
Use Date: Signed Day Offset Label when checking a supplied date-label, duration or interval convention.
How to use the tool and how it works
- Enter days. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read result. Expand result to inspect the returned fields.
Label the sign of a bounded whole day offset. Require days in [-1000000,1000000]; return same-day, after or before and absolute magnitudeDays.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| days | Days | Required. Safe integer. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| result | Returned object; expand its named members below. | Required. Object. |
| result.label | Label | Calculated result member: string. |
| result.magnitudeDays | Magnitude Days | Calculated result member: number. |
{
"input": {
"days": -2
},
"output": {
"result": {
"label": "before",
"magnitudeDays": 2
}
}
}Limitations and assumptions
- This is a supplied offset label, not addition to a calendar date or a business-day calculation.
- Outputs are nested inside result. Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use a complete date/time implementation and the applicable calendar policy for actual scheduling and interval interpretation.
References
Similar or alternative tools
- Proleptic Year Signed Padding
Format a signed proleptic year with minimum digit width.
- Relative Date Anchor Literal Formatter
Format a validated date anchor plus a signed day-offset literal.