Fixed in Time' is a guide to dating Civil War era and earlier photographs by their mats and cases. It illustrates a thousand daguerreotype, ambrotype or tintype mat and case styles, each dated according to the years they were used. Some mats and cases were used for only a brief time, allowing you to date some early photographs to within a year. The dates provided are based on my own research, a five-year labor of love, where I located nearly 5,000 objectively dated early photographs.

This service calculates the duration, counting the day count and the number of days, months and years between two dates. Among other things, it can be used find how many days old you are and the weekday you were born. It also enables you to add or subtract days, months and years to a date to calculate a past or future date.

Helps turn tombstone inscriptions into dates