![date - Excel adds "1/1/1900" to my time duration entries and changes the time as it appears in formula box. Usual fixes not working - Stack Overflow date - Excel adds "1/1/1900" to my time duration entries and changes the time as it appears in formula box. Usual fixes not working - Stack Overflow](https://i.stack.imgur.com/NVFFG.png)
date - Excel adds "1/1/1900" to my time duration entries and changes the time as it appears in formula box. Usual fixes not working - Stack Overflow
Tableau Expert Info: How to calculate time difference between In time and Out time in HH:MM:SS format?
![Date Duration Calculator: Days between two dates | Time zone map, Free online tools, World time zones Date Duration Calculator: Days between two dates | Time zone map, Free online tools, World time zones](https://i.pinimg.com/736x/fb/a5/c0/fba5c04d6c43a8c69b4ef062ce047bd7--world-time-zones-time-zone-map.jpg)