Adds millisecond functionality to timer

[Lelin07]

Description

This pull request implements millisecond functionality to enhance the precision of time-related operations in the project. Although the original issue tracking this feature was removed, the enhancement remains valuable for users requiring more precise time measurements.

Additional Notes

• No new dependencies were added.
• This enhancement does not break existing functionality.

@Dev-tanay Please review these changes. Despite the original issue being removed, implementing millisecond functionality significantly enhances the project's capabilities and precision.

[Dev-tanay]

Please mention the issue number @Lelin07

[Lelin07]

@Dev-tanay This PR addresses issue #239

[Lelin07]

@Dev-tanay Kindly review the changes