Table 1.
Number of Total and Likely Human Error-Related Safety Incidents in the Weeks Preceding and Following the Spring and Fall Time Changes
| 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | Total | |
|---|---|---|---|---|---|---|---|---|---|
| All safety-related incidents | |||||||||
| Spring—week following DST starting | 56 | 210 | 423 | 399 | 396 | 368 | 440 | 520 | 2812 |
| Spring—week prior to DST starting | 54 | 155 | 411 | 415 | 354 | 375 | 443 | 492 | 2699 |
| Human error-related safety incidents | |||||||||
| Spring—week following DST starting | 45 | 161 | 304 | 261 | 277 | 241 | 278 | 335 | 1902 |
| Spring—week prior to DST starting | 44 | 86 | 262 | 262 | 209 | 207 | 276 | 279 | 1625 |
| All safety-related incidents | |||||||||
| Fall—week following DST ending | 179 | 394 | 463 | 437 | 334 | 467 | 461 | 472 | 3207 |
| Fall—week prior to DST ending | 102 | 395 | 381 | 436 | 368 | 435 | 478 | 412 | 3007 |
| Human error-related safety incidents | |||||||||
| Fall—week following DST ending | 136 | 263 | 331 | 300 | 215 | 330 | 307 | 307 | 2189 |
| Fall—week prior to DST ending | 80 | 263 | 289 | 315 | 243 | 298 | 319 | 280 | 2087 |
DST, daylight savings time