DateTime in militaryformat

Question

I am trying to get a time variable that always uses 4 digits to represent the time as per below.

I have tried the following

 string slotStartTimeInMilitaryFormat = $"{timeSlotsStartTime.Hour}{timeSlotsStartTime.Minute}";

Problem is that I need 1AM to be 0100 and 9PM to be 2100 in other words always a 4 digit representation of the time

but my code makes it 100 instead of 0100 etc.

How can I ensure I always get the 4 digit representation

0000 0030 0100

1300 1330 1400

Does [String.PadLeft](https://learn.microsoft.com/en-us/dotnet/api/system.string.padleft?view=net-5.0) work for you? — Lolop, Apr 02 '21 at 04:34
@JohnG's answer is correct as `timeSlotsStartTime.ToString("HHmm")` will format the hour as 24-hour based and fulfill the 4 digits as the requirement mentioned. — Yong Shun, Apr 02 '21 at 04:46
@JohnG worked like a charm, if you make it an answer I will accept it. — Matt Douhan, Apr 02 '21 at 04:58

score 2 · Accepted Answer · answered Apr 02 '21 at 05:01

2

Try...

string slotStartTimeInMilitaryFormat = timeSlotsStartTime.ToString("HHmm");

answered Apr 02 '21 at 05:01

JohnG

score -1 · Answer 2 · answered Apr 02 '21 at 04:42

-1

Use String Interpolation:

$"{15:00000}"; // "00015"

answered Apr 02 '21 at 04:42

Thieu

2 Answers2