This is probably a nonstandard variant of European date order, yielding YYYY-DD-MM.
Usually when the year goes first or when there are hyphens as delimiters, it's an ISO 8601-style date (YYYY-MM-DD). However, Europeans often write DD/MM in other contexts, so the habit could transfer over when writing the year first, even though there's no standardized format that does this.
kristopolous|3 years ago
renewiltord|3 years ago
abrax3141|3 years ago
schoen|3 years ago
Usually when the year goes first or when there are hyphens as delimiters, it's an ISO 8601-style date (YYYY-MM-DD). However, Europeans often write DD/MM in other contexts, so the habit could transfer over when writing the year first, even though there's no standardized format that does this.
ISV_Damocles|3 years ago
janzer|3 years ago
selcuka|3 years ago
Correction: Every country except the US (not counting the ones that use YYYY/DD/MM, such as Japan).
avgcorrection|3 years ago