writeDateTime method

String writeDateTime(
  1. DateTimeCellValue value
)

Implementation

String writeDateTime(DateTimeCellValue value) {
  var dateOffset = DateTime.utc(1899, 12, 30);
  final delta = value.asDateTimeUtc().difference(dateOffset);
  final dayFractions = delta.inMilliseconds.toDouble() / (1000 * 3600 * 24);
  return dayFractions.toString();
}