[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the \u003ccode\u003eInterval\u003c/code\u003e class within the Google Cloud Spanner C++ library, with version 2.37.0-rc as the latest available version.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eInterval\u003c/code\u003e class represents the difference between two date/time values, serving as the Spanner INTERVAL type.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eInterval\u003c/code\u003e class supports various constructors, including default construction for a zero-length interval, and constructors to specify years, months, days, and nanosecond offsets.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eInterval\u003c/code\u003e class supports regular value type operations like copy, assign, move, and arithmetic operations such as addition, subtraction, multiplication, and division, with a caution regarding fractional operations.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eInterval\u003c/code\u003e class provides an operator to convert the represented interval into a string format.\u003c/p\u003e\n"]]],[],null,["# Class Interval (2.42.0-rc)\n\nVersion latestkeyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/spanner/latest/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.41.0](/cpp/docs/reference/spanner/2.41.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.40.0](/cpp/docs/reference/spanner/2.40.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.39.0](/cpp/docs/reference/spanner/2.39.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.38.0](/cpp/docs/reference/spanner/2.38.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.37.0](/cpp/docs/reference/spanner/2.37.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.36.0](/cpp/docs/reference/spanner/2.36.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.35.0](/cpp/docs/reference/spanner/2.35.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.34.0](/cpp/docs/reference/spanner/2.34.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.33.0](/cpp/docs/reference/spanner/2.33.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.32.0](/cpp/docs/reference/spanner/2.32.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.31.0](/cpp/docs/reference/spanner/2.31.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.30.0](/cpp/docs/reference/spanner/2.30.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.29.0](/cpp/docs/reference/spanner/2.29.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.28.0](/cpp/docs/reference/spanner/2.28.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.27.0](/cpp/docs/reference/spanner/2.27.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.26.0](/cpp/docs/reference/spanner/2.26.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.25.1](/cpp/docs/reference/spanner/2.25.1/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.24.0](/cpp/docs/reference/spanner/2.24.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.23.0](/cpp/docs/reference/spanner/2.23.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.22.1](/cpp/docs/reference/spanner/2.22.1/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.21.0](/cpp/docs/reference/spanner/2.21.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.20.0](/cpp/docs/reference/spanner/2.20.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.19.0](/cpp/docs/reference/spanner/2.19.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.18.0](/cpp/docs/reference/spanner/2.18.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.17.0](/cpp/docs/reference/spanner/2.17.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.16.0](/cpp/docs/reference/spanner/2.16.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.15.1](/cpp/docs/reference/spanner/2.15.1/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.14.0](/cpp/docs/reference/spanner/2.14.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.13.0](/cpp/docs/reference/spanner/2.13.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.12.0](/cpp/docs/reference/spanner/2.12.0/classgoogle_1_1cloud_1_1spanner_1_1Interval)\n- [2.11.0](/cpp/docs/reference/spanner/2.11.0/classgoogle_1_1cloud_1_1spanner_1_1Interval) \nA representation of the Spanner INTERVAL type: The difference between two date/time values. \n\n###### See Also\n\n\u003chttps://cloud.google.com/spanner/docs/data-types#interval_type\u003e\n\nConstructors\n------------\n\n### Interval(Interval \\&\\&)\n\nRegular value type, supporting copy, assign, move.\n\n### Interval(Interval const \\&)\n\nRegular value type, supporting copy, assign, move.\n\n### Interval()\n\nDefault construction yields a zero-length interval.\n\n### Interval(std::int32_t, std::int32_t, std::int32_t, std::chrono::nanoseconds)\n\n### Interval(std::chrono::nanoseconds)\n\nOperators\n---------\n\n### operator-() const\n\nAdjust the interval so that 30-day periods are represented as months. \nFor example, maps \"35 days\" to \"1 month 5 days\".\n\n### operator=(Interval \\&\\&)\n\nRegular value type, supporting copy, assign, move.\n\n### operator=(Interval const \\&)\n\nRegular value type, supporting copy, assign, move.\n\n### operator std::string() const\n\nConversion to a string using ISO8601 duration format."]]
