srsglass saves estimated update times as an actual Excel datetime (which have an underlying data type of a 64-bit floating-point integer^1). Spyglass just concatenates the number of hours, minutes, and seconds with colons in between, without adding leading zeroes as appropriate. I find the Excel datetimes to be a more sensible default for srsglass, but a compatibility mode that just concatenates some numbers and colons together could be useful for any third-party tooling that is still expecting string data.
cc: @rootabeta
srsglass saves estimated update times as an actual Excel datetime (which have an underlying data type of a 64-bit floating-point integer^1). Spyglass just concatenates the number of hours, minutes, and seconds with colons in between, without adding leading zeroes as appropriate. I find the Excel datetimes to be a more sensible default for srsglass, but a compatibility mode that just concatenates some numbers and colons together could be useful for any third-party tooling that is still expecting string data.