diff options
Diffstat (limited to 'date.go')
| -rw-r--r-- | date.go | 9 |
1 files changed, 5 insertions, 4 deletions
@@ -10,6 +10,7 @@ package excelize import ( + "errors" "math" "time" ) @@ -25,18 +26,18 @@ var ( ) // timeToExcelTime provides a function to convert time to Excel time. -func timeToExcelTime(t time.Time) float64 { +func timeToExcelTime(t time.Time) (float64, error) { // TODO in future this should probably also handle date1904 and like TimeFromExcelTime // Force user to explicit convet passed value to UTC time. // Because for example 1900-01-01 00:00:00 +0300 MSK converts to 1900-01-01 00:00:00 +0230 LMT // probably due to daylight saving. if t.Location() != time.UTC { - panic("only UTC time expected") + return 0.0, errors.New("only UTC time expected") } if t.Before(excelMinTime1900) { - return 0.0 + return 0.0, nil } tt := t @@ -60,7 +61,7 @@ func timeToExcelTime(t time.Time) float64 { if t.After(excelBuggyPeriodStart) { result += 1.0 } - return result + return result, nil } // shiftJulianToNoon provides a function to process julian date to noon. |