You have the values in columns A:B formatted as times, so that's all you see. But if you change the format to General, and show more decimal places, this is what you see:
Book1 |
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| A | B | C | D | E | F |
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1 | Meal | M1-End | | | | |
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2 | 0.00000000 | 0.010417 | | | | |
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3 | 0.00000000 | 0.010417 | | | | |
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4 | 1.00000000 | 1.010417 | | 0 | 0.01041666666667 | 47 |
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5 | 1.00000000 | 1.010417 | | | | 111 |
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6 | 1.00000000 | 1.010417 | | | | |
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7 | 1.00000000 | 1.010417 | | | | |
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8 | 0.00000000 | 0.010417 | | | | |
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9 | 0.00000000 | 0.010417 | | | | |
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10 | 1.00000000 | 1.010417 | | | | |
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11 | 1.00000000 | 1.010417 | | | | |
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12 | 0.00000000 | 0.010417 | | | | |
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13 | 1.00000000 | 1.010417 | | | | |
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14 | 0.00000000 | 0.010417 | | | | |
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15 | 0.00000000 | 0.010417 | | | | |
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16 | 1.00000000 | 1.010417 | | | | |
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17 | 1.00000000 | 1.010417 | | | | |
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18 | 1.00000000 | 1.010417 | | | | |
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19 | 1.00000000 | 1.010417 | | | | |
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20 | 1.00000000 | 1.010417 | | | | |
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21 | 1.00000000 | 1.010417 | | | | |
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22 | 1.00000000 | 1.010417 | | | | |
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23 | 1.00000000 | 1.010417 | | | | |
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24 | 0.00000000 | 0.010417 | | | | |
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25 | 1.00000000 | 1.010417 | | | | |
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26 | 1.00000000 | 1.010417 | | | | |
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27 | 1.00000000 | 1.010417 | | | | |
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28 | 0.00000000 | 0.010417 | | | | |
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29 | 1.00000000 | 1.010417 | | | | |
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30 | 1.00000000 | 1.010417 | | | | |
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31 | 1.00000000 | 1.010417 | | | | |
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32 | 0.00000000 | 0.010417 | | | | |
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33 | 1.00000000 | 1.010417 | | | | |
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34 | 0.00000000 | 0.010417 | | | | |
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35 | 0.00000000 | 0.010417 | | | | |
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36 | 0.00000000 | 0.010417 | | | | |
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37 | 0.00000000 | 0.010417 | | | | |
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38 | 0.00000000 | 0.010417 | | | | |
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39 | 1.00000000 | 1.010417 | | | | |
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40 | 1.00000000 | 1.010417 | | | | |
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41 | 0.00000000 | 0.010417 | | | | |
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42 | 1.00000000 | 1.010417 | | | | |
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43 | 1.00000000 | 1.010417 | | | | |
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44 | 0.00000000 | 0.010417 | | | | |
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45 | 1.00000000 | 1.010417 | | | | |
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46 | 0.00000000 | 0.010417 | | | | |
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47 | 1.00000000 | 1.010417 | | | | |
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48 | 1.00000000 | 1.010417 | | | | |
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49 | 1.00000000 | 1.010417 | | | | |
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50 | 0.00000000 | 0.010417 | | | | |
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51 | 1.00000000 | 1.010417 | | | | |
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52 | 1.00000000 | 1.010417 | | | | |
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53 | 0.00000000 | 0.010417 | | | | |
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54 | 0.00000000 | 0.010417 | | | | |
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55 | 1.00000000 | 1.010417 | | | | |
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56 | 0.00000000 | 0.010417 | | | | |
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57 | 1.00000000 | 1.010417 | | | | |
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58 | 1.00000000 | 1.010417 | | | | |
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59 | 0.00000000 | 0.010417 | | | | |
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60 | 1.00000000 | 1.010417 | | | | |
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61 | 1.00000000 | 1.010417 | | | | |
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62 | 0.00000000 | 0.010417 | | | | |
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63 | 1.00000000 | 1.010417 | | | | |
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64 | 0.00000000 | 0.010417 | | | | |
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65 | 0.00000000 | 0.010417 | | | | |
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66 | 1.00000000 | 1.010417 | | | | |
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67 | 1.00000000 | 1.010417 | | | | |
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68 | 0.00000000 | 0.010417 | | | | |
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69 | 1.00000000 | 1.010417 | | | | |
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70 | 1.00000000 | 1.010417 | | | | |
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71 | 0.00000000 | 0.010417 | | | | |
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72 | 1.00000000 | 1.010417 | | | | |
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73 | 1.00000000 | 1.010417 | | | | |
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74 | 0.00000000 | 0.010417 | | | | |
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75 | 0.00000000 | 0.010417 | | | | |
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76 | 1.00000000 | 1.010417 | | | | |
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77 | 1.00000000 | 1.010417 | | | | |
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78 | 0.00000000 | 0.010417 | | | | |
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79 | 1.00000000 | 1.010417 | | | | |
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80 | 1.00000000 | 1.010417 | | | | |
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81 | 1.00000000 | 1.010417 | | | | |
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82 | 0.00000000 | 0.010417 | | | | |
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83 | 1.00000000 | 1.010417 | | | | |
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84 | 1.00000000 | 1.010417 | | | | |
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85 | 0.00000000 | 0.010417 | | | | |
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86 | 0.00000000 | 0.010417 | | | | |
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87 | 1.00000000 | 1.010417 | | | | |
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88 | 1.00000000 | 1.010417 | | | | |
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89 | 1.00000000 | 1.010417 | | | | |
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90 | 0.00000000 | 0.010417 | | | | |
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91 | 0.00000000 | 0.010417 | | | | |
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92 | 0.00000000 | 0.010417 | | | | |
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93 | 1.00000000 | 1.010417 | | | | |
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94 | 0.00000000 | 0.010417 | | | | |
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95 | 0.00000000 | 0.010417 | | | | |
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96 | 1.00000000 | 1.010417 | | | | |
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97 | 1.00000000 | 1.010417 | | | | |
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98 | 0.00000000 | 0.010417 | | | | |
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99 | 1.00000000 | 1.010417 | | | | |
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100 | 1.00000000 | 1.010417 | | | | |
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101 | 0.00000000 | 0.010417 | | | | |
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102 | 1.00000000 | 1.010417 | | | | |
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103 | 0.00000000 | 0.010417 | | | | |
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104 | 0.00000000 | 0.010417 | | | | |
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105 | 0.00000000 | 0.010417 | | | | |
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106 | 1.00000000 | 1.010417 | | | | |
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107 | 1.00000000 | 1.010417 | | | | |
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108 | 1.00000000 | 1.010417 | | | | |
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109 | 1.00000000 | 1.010417 | | | | |
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110 | 0.00000000 | 0.010417 | | | | |
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111 | 0.00000000 | 0.010417 | | | | |
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112 | 0.00000000 | 0.010417 | | | | |
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113 | | | | | | |
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114 | | | | | | |
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A date is a number (the number of days since January 1, 1900), and a time is a fraction of a day. So looking at these times, some of them start with a 1, meaning the next day. These are the ones that are not counted. You don't see the 1 because of how the cell is formatted. To clear it up, you need to remove the leading 1s.
It's also worth noting that since times are fractions of a day, and fractions cannot be stored exactly in Excel, sometimes you get odd mismatches as well. You might want to change the E4 cell to 00:15:01.
If you do not care about the leading 1s, and you just want to compare the time portions, try the formula in F5.
Good luck!