Struct SecondFn 

pub struct SecondFn;

Extracts the second component (0 to 59) from a time or datetime serial.

Remarks

• The integer date portion is ignored for second extraction.
• Conversion uses Excel 1900 serial interpretation when resolving datetime values.
• Time is computed from the serial fraction and rounded to whole seconds.

Examples

title: "Extract second from 15:30:45"
formula: "=SECOND(0.6463541667)"
expected: 45

title: "Extract second from exact noon"
formula: "=SECOND(0.5)"
expected: 0

related:
  - HOUR
  - MINUTE
  - TIMEVALUE
faq:
  - q: "Can SECOND return 60 for leap seconds?"
    a: "No. SECOND returns values from 0 to 59 based on spreadsheet serial-time interpretation."

Trait Implementations

impl Debug for SecondFn

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Function for SecondFn

[formualizer-docgen:schema:start] Name: SECOND Type: SecondFn Min args: 1 Max args: 1 Variadic: false Signature: SECOND(arg1: number@scalar) Arg schema: arg1{kinds=number,required=true,shape=scalar,by_ref=false,coercion=NumberLenientText,max=None,repeating=None,default=false} Caps: PURE [formualizer-docgen:schema:end]

fn caps(&self) -> FnCaps

Capability flags for this function

fn name(&self) -> &'static str

fn min_args(&self) -> usize

fn arg_schema(&self) -> &'static [ArgSchema]

fn eval<'a, 'b, 'c>( &self, args: &'c [ArgumentHandle<'a, 'b>], _ctx: &dyn FunctionContext<'b>, ) -> Result<CalcValue<'b>, ExcelError>

The unified evaluation path.

fn namespace(&self) -> &'static str

fn variadic(&self) -> bool

fn volatile(&self) -> bool

fn aliases(&self) -> &'static [&'static str]

Optional list of additional alias names (case-insensitive) that should resolve to this function. Default: empty slice. Implementors can override to expose legacy names. Returned slice must have ’static lifetime (typically a static array reference).

fn function_salt(&self) -> u64

fn eval_reference<'a, 'b, 'c>( &self, _args: &'c [ArgumentHandle<'a, 'b>], _ctx: &dyn FunctionContext<'b>, ) -> Option<Result<ReferenceType, ExcelError>>

Optional reference result path. Only called by the interpreter/engine when the callsite expects a reference (e.g., range combinators, by-ref argument positions, or spill sources).

fn dispatch<'a, 'b, 'c>( &self, args: &'c [ArgumentHandle<'a, 'b>], ctx: &dyn FunctionContext<'b>, ) -> Result<CalcValue<'b>, ExcelError>

Dispatch to the unified evaluation path with automatic argument validation.