In TimesOwn Pro the Time Zone Status Selector is shown when Lookup Mode is selected. Lookup mode references the Time Zone List, using the particular Time, Date, Time Zone and Time Zone Status. TimesOwn Pro offers the user the appropriately available Time Status options for any given Time, Date and Time Zone.

When it is Standard time the selector simply indicates the Time Zone Status Abbreviation. Hovering with the mouse displays the Time Zone Name, Time, Day, Date, Time Zone Status Abbreviation and the Full Time Zone Status. The Time Zone Status Control appears to go into the screen, and the text appears slightly higher than midline.

When wall clock time is non standard time, for example daylight, summer, mid-summer time etc. then the selector becomes a clickable button to enable selection of the preferred reference time. The Time Zone Status Control appears to come out of the screen and the text appears slightly lower than midline. Clicking this button will alternate between standard time and the applicable wall clock time status. It may also be selected by simultaneously pressing Alt+S. Pressing Enter is the keyboard alternative to click this button, repeat if wished. The Time Zone List will display the wall clock times corresponding to this reference time.

When appropriate, TimesOwn Pro allows you to select either summer or standard reference time status and display the equivalent times in the Time Zones List. Selecting 1.30 a.m. summer time displays 1.30 a.m. summer time equivalents in the Time Zone List. If the Summer Time offset is one hour, selecting 1.30 a.m. standard time displays 2.30 a.m. summer time equivalents in the Time Zone List.

Transition to Daylight / Summer Time (Yellow)
When a time zone changes to new (or increasing) daylight saving / summer time, then a period of Wall Clock Time disappears, typically 1 hour. For example when Summer Time starts at 2 a.m. and the time goes forwards one hour then the period 2 to 2.59 a.m. effectively does not exist in wall clock terms, although it continues to exist in standard time terms. Summer Time starts at 3.00 a.m. Summer Time. TimesOwn will not allow the user to select 2.59a.m. Summer Time as it does not exist, but it will allow the user to select 3.00 a.m..

TimesOwn Pro highlights this transition period by changing the color of the Time Zone Status Selector to yellow. This indicates that the time / date and time zone are in a period of transition, in which the particular time selected only exists in standard time terms. The time zone selector shows the applicable wall clock time. This shows yellow for the period concerned. Continuing the above example:

Before 2.00 a.m. standard time has no summer time equivalent;
2.00 - 2.59 a.m. standard time has no summer time equivalent, yet is shown in yellow as wall clock time is now summer time;
3.00 a.m. onwards standard time is equivalent to 4.00 a.m. onwards summer time, and either time may now be toggled.

TimesOwn Pro allows you to select either reference time status (Standard or Summer) to display the correct equivalent times in the Time Zones List. During the yellow status periods only standard times for the values selected (particularly time) may be legitimately selected, even though both Standard and Summer times both exist during these periods.

Transition to Standard Time K(Blue)
When a time zone changes back to standard (or decreased daylight saving / summer time) then a period of wall clock time repeats itself, although they are different as the first interval is Summer Time and the second (apparently duplicated) interval is Standard Time. Continuing the above, example if summer time reverts back to standard time at 2 a.m. standard time then the time from 2.00 to 2.59 a.m. is effectively duplicated, although one is Summer Time and the other is Standard time. The time sequence goes 2.00 Summer Time => 2.59 Summer Time => 2.00 Standard Time => 2.59 Standard Time => 3.00 Standard Time etc. Continuing the above example:

Before 1.59 a.m. standard time is equivalent to before 2.59 a.m. summer time;
2.00 – 2.59 a.m. standard time has no summer time equivalent yet is shown in blue as 2.00 – 2.59 a.m. Summer Time may still be toggled;
3.00 a.m. onwards standard time has no summer time equivalent and Summer Time may therefore not be selected.

In Standard Time, TimesOwn Pro highlights this transition period by changing the color of the Time Zone Status Selector to blue. This indicates the standard time / date and time zone are in a period of transition in which the particular time selected exists in both standard and the applicable daylight / summer equivalent time terms. The time zone selector shows the selected time zone status. During the blue period changing (toggling) the Time Zone Status will change the Time Zone List UTC, Local Offset and Abbr. values. Ordinarily (Non blue status) there would be no difference. Another characteristic of this blue time is that the reference Time Status for the same zone in the Time Zone List will be equivalent.