Difference between revisions of "Time Epochs"
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| Line 45: | Line 45: | ||
! Clock Tick Units | ! Clock Tick Units | ||
! Example | ! Example | ||
| + | ! SQLite | ||
|- | |- | ||
| style="text-align:center;" | 10 | | style="text-align:center;" | 10 | ||
| One Second | | One Second | ||
| style="text-align:left;" | 1634658701 | | style="text-align:left;" | 1634658701 | ||
| + | | <code>DATETIME([time], 'unixepoch')</code> | ||
|- | |- | ||
| style="text-align:center;" | 13 | | style="text-align:center;" | 13 | ||
| One Millisecond | | One Millisecond | ||
| style="text-align:left;" | 1634658701948 | | style="text-align:left;" | 1634658701948 | ||
| + | | <code>DATETIME([time] / 1000, 'unixepoch')</code> | ||
|- | |- | ||
| style="text-align:center;" | 16 | | style="text-align:center;" | 16 | ||
| One Microsecond | | One Microsecond | ||
| style="text-align:left;" | 1634658701948449 | | style="text-align:left;" | 1634658701948449 | ||
| + | | <code>DATETIME([time] / 1000000, 'unixepoch')</code> | ||
|- | |- | ||
| style="text-align:center;" | 19 | | style="text-align:center;" | 19 | ||
| One Nanosecond | | One Nanosecond | ||
| style="text-align:left;" | 1634658701948449001 | | style="text-align:left;" | 1634658701948449001 | ||
| + | | <code>DATETIME([time] / 1000000000, 'unixepoch')</code> | ||
|} | |} | ||
Revision as of 05:48, 13 June 2026
Contents
Epochs
Here's some of the time formats that Truxton can handle. Wikipedia has a better list. The Truxton software uses FILETIME for all time calculations.
| Epoch | Type |
|---|---|
15 Oct 1582
|
UUID Type 1 |
01 Jan 1601
|
Windows FILETIME Chrome |
30 Dec 1899
|
Windows COM |
01 Jan 1970
|
Unix Time Firefox |
01 Jan 2001
|
Apple |
Apple Cocoa Core
Cocoa Core (aka NSDate) is the number of seconds (32-bit value) since 01 Jan 2001. The 64-bit version is the number of nanoseconds since 01 Jan 2001.
Chrome
Chrome stores the time as a 64-bit integer representing the number of microseconds since 01 Jan 1601.
Firefox
Firefox (PRTime) stores the time as a 64-bit integer representing the number of microseconds since 01 Jan 1970.
Unix Time
This is a 32-bit integer holding the number of clock ticks since 01 Jan 1970. You will see this value in a variety of ticks.
Hints
The Unix epoch can be stored in several different clock ticks.
| Digits | Clock Tick Units | Example | SQLite |
|---|---|---|---|
| 10 | One Second | 1634658701 | DATETIME([time], 'unixepoch')
|
| 13 | One Millisecond | 1634658701948 | DATETIME([time] / 1000, 'unixepoch')
|
| 16 | One Microsecond | 1634658701948449 | DATETIME([time] / 1000000, 'unixepoch')
|
| 19 | One Nanosecond | 1634658701948449001 | DATETIME([time] / 1000000000, 'unixepoch')
|
UUID
A 60-bit integer holding the number of 100-nanosecond clock ticks since 15 Oct 1582.
Windows COM
Windows COM stores date time in a double (floating point) number representing the number of days since 30 Dec 1899.
Windows FILETIME
A 64-bit integer containing the number of 100-nanosecond clock ticks since 01 Jan 1601.
