The document lists times from 15:00 down to 0:00 in decrements of 10 minutes, indicating that it is a countdown timer that ended at 0:00.

1. 15:00

2. 14:50

3. 14:40

4. 14:30

5. 14:20

6. 14:20

7. 14:10

8. 14:00

9. 13:50

10. 13:40

11. 13:30

12. 13:20

13. 13:20

14. 13:10

15. 13:00

16. 12:50

17. 12:40

18. 12:30

19. 12:20

20. 12:10

21. 12:00

22. 11:50

23. 11:40

24. 11:30

25. 11:20

26. 11:10

27. 11:00

28. 10:50

29. 11:40

30. 11:30

31. 11:20

32. 11:10

33. 11:00

34. 10:50

35. 10:40

36. 10:30

37. 10:20

38. 10:10

39. 10:00

40. 9:50

41. 9:40

42. 9:30

43. 9:20

44. 9:10

45. 9:00

46. 8:50

47. 8:40

48. 8:30

49. 8:20

50. 8:10

51. 8:00

52. 7:50

53. 7:40

54. 7:30

55. 7:20

56. 7:10

57. 7:00

58. 6:50

59. 6:40

60. 6:30

61. 6:20

62. 6:10

63. 6:00

64. 5:50

65. 5:40

66. 5:30

67. 5:20

68. 5:10

69. 5:00

70. 4:50

71. 4:40

72. 4:30

73. 4:20

74. 4:10

75. 4:00

76. 3:50

77. 3:40

78. 3:30

79. 3:20

80. 3:10

81. 3:00

82. 2:50

83. 2:40

84. 2:30

85. 2:20

86. 2:10

87. 2:00

88. 1:50

89. 1:40

90. 1:30

91. 1:20

92. 1:10

93. 1:00

94. 0:50

95. 0:40

96. 0:30

97. 0:20

98. 0:10

99. 0:00 Time is up!