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SpreadJS Documentation / Formula Reference / Formula Overview / Operators in a Formula / Operators with Dates and Times
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    Operators with Dates and Times
    In This Topic

    You can use several of the operators with dates and times as summarized here:

    Operator Type of Operation Result
    Plus + TimeSpan TimeSpan
    Negate - TimeSpan TimeSpan
    Add DateTime + TimeSpan DateTime
    Add TimeSpan + DateTime DateTime
    Add TimeSpan + TimeSpan TimeSpan
    Subtract DateTime - DateTime TimeSpan
    Subtract DateTime - TimeSpan DateTime
    Subtract TimeSpan - TimeSpan DateTime

    The same order of precedence applies, including use of parentheses, as described in Order of Precedence.

    If a DateTime or TimeSpan calculation results in an exception (for example, an OverflowException), the operator returns the #NUM! error.